Neil Patrick Harris may guest star in 'American Horror Story: Freak Show'.
The actor is a huge fan of the TV series and had asked screenwriter and personally asked director Ryan Murphy if there was any way he could be included.
He recently said: "I wrote a letter to Ryan, asking if I could be in it. And he didn't respond."
However, Ryan has now written back, saying he has already started work on a role for the former 'How I Met Your Mother' star into the show.
He wrote on Twitter: "@ActuallyNPH of course you can be on Freak Show! I have a role I think you'd love."
'American Horror Story: Freak Show' is the fourth series of the show, broadcast on the FX network. It will follow a fictional version of one of the remaining Freak Show businesses of the 50s, based in Florida, and its struggle to stay alive.
The series will include returning cast members Evan Peters, Emma Roberts, Gabourey Sidibe and Jessica Lange.
Meanwhile, Neil is making his move to the East Coast - where he is currently starring on Broadway - permanent, after he and fiancé David Burtka listed their California home for sale.
The couple - who have three-year-old twins Gideon Scott and Harper Grace, born to them via a surrogate - bought their house in the Sherman Oaks neighborhood in 2010 for $2.1 million but have now listed the property for $2.995 million.

Adam Levine and Behati Prinsloo kicked off their wedding weekend with a beach party last night (18.07.14).
The 'Payphone' singer is set to marry his Victoria's Secret Angel girlfriend later today (19.07.14) in Cabo San Lucas, Mexico, and the event got off to a roaring start last night as they were joined by guests at the El Dorado Golf and Beach Club.
The wedding party ate Mexican food at the gathering, including the traditional sweet dish churros for dessert.
An insider told People magazine: "Everyone seemed to have a great time. The party went to the late hours."
The couple will marry in the tropical spot later today and Adam, 35, has previously promised the wedding "won't be typical, I can tell you that".
Adam has earmarked special roles for his Maroon 5 bandmates, with guitarist James Valentine performing a "nice little medley" of Beatles tunes before the nuptials.
James joked: "It's just another gig for me. I'm gonna be playing some solo acoustic guitar during the ceremony when people are walking [in]."
'The Voice' mentor Adam's best man will be bandmate Jesse Carmichael, whom he has known since he was 12 years old.
The wedding will also reportedly include a performance by Fleetwood Mac singer Stevie Nicks, who Adam frequently cites as one of his favourites and a huge influence on him.

Hugh Jackman is helping his overweight friend get fit for a marathon.
'The Wolverine' hunk - known for his large chest and buff body - has set Australian radio and TV personality Gus Worland the challenge of running the New York City Marathon in November, after he became concerned about him piling on the pounds.
Gus - who weighed a reported 308lbs before training - is also filming his journey to becoming fit and the build up to the race for a documentary series.
He has also been getting lot of tips from his famous friend, whom he has known since they were schoolkids.
He told Daily Mail Australia: "Jacko and I talk a lot and as expected he is very honest and passionate with his advice.
"He's proud of me but is not concerned that I'll take over [his role as] Wolverine."
In the documentary Gus will take on a different challenge every episode, with the finale being when he runs the marathon.
Hugh has promised that if his filming schedule allows, he will be there to cheer him over the finish line.
Gus is understood to have shed 55lbs so far, with a target of losing 88lbs in total.
Speaking about his training, he added: "I have along way to go but I'm on the right track."

Former JLS star Oritsé Williams is to become a father.
The 'She Makes Me Wanna' singer and his girlfriend Aimee Jade Azari announced their happy news by posting a photo of them together on Twitter, where she can be seen clutching her heavily pregnant stomach.
Aimee captioned the picture: "Xxxxx @Oritse and our lil legend xxx love u (sic)"
Oritsé's former bandmate Marvin Humes was quick to send his well wishes.
He tweeted: "Huge congrats to @Oritse and @AJAzari the Williams baby is on the way!!! Very excited for you both! Big love.(sic)"
Marvin is himself the father of one-year-old daughter Alaia-Mai with his wife Rochelle. JLS member Jonathan 'JB' Gill is also expecting with his wife Chloe Tangney, leaving just Aston Merrygold out of the band to embark on fatherhood.
Oritsé, 27, started dating Aimee in summer 2012 after he managed her girl band, Vida.
Previously speaking about their relationship, he has said: "I'm lucky to be with such a beautiful and talented person. Right know we're just enjoying the ride. We're like Bonnie and Clyde. She's been phenomenal. I'm so lucky and fortunate."

Kim Kardashian thinks Kanye West looks "so sexy" on the cover of GQ magazine.
The reality TV star's rapper husband graces the cover of the men's fashion and lifestyle magazine's August edition for Australia, wearing a beige jacket and a white T-shirt with a gold chain around his neck and bearing a quizzical look on his face.
Kim posted a picture of the cover on Instagram and wrote alongside it: "So sexy! My husband on the cover of GQ shot by Patrick Demarchelier!!! (sic)"
Kanye will no doubt be pleased with landing the cover, as he has long been a fashionista, completing an internship at Italian fashion brand Fendi in 2009, designing his own Nike Air Yeezy II line of trainers and releasing a clothing collection with French brand A.P.C.
However, his relationship with the industry has at times been rocky, and he has previously said his track 'I Am A God' was a direct reaction to being invited to a show at Paris Fashion Week in 2012, but only on the condition he wouldn't appear at any other fashion shows that week.
He said: "So the next day I went to the studio with Daft Punk, and I wrote 'I Am a God'. Because it's like, 'Yo! Nobody can tell me where I can and can't go. Man, I'm the number one living and breathing rock star.
"I am Axl Rose; I am Jim Morrison; I am Jimi Hendrix. You can't say that you love music and then say that Kanye West can't come to your show!
"To even think they could tell me where I could and couldn't go is just ludicrous. It's blasphemous - to rock 'n' roll, and to music."

Prince Harry has been spotted getting "very cosy" with a new woman.
The young royal has been single for two months since splitting with socialite Cressida Bonas, but appeared to be enjoying the company of charity worker Camilla Thurlow, 25, at Tonteria nightclub in London.
A source told The Sun newspaper: "They looked very cosy and kissed more than once. But they are not serious in any way. They're just two young people having a good time."
Harry was at the club, owned by his friend Guy Pelly, with friends and although he and Camilla - a former Miss Edinburgh - appeared to be having a good time, the friend doesn't think a full romance is on the cards.
The source added: "It's probably unlikely they will see each other again - they are both very busy."
Coincidentally, Camilla works for The Halo Trust, a mine clearance charity which Harry's mother, Princess Diana, was heavily involved with.
The royal has also reportedly been in contact with another of his rumoured old flames, Caroline Flack, since his split from Cressida.
A source previously said: "They have been in contact by phone. Harry likes to keep in touch with his old girlfriends and he knows Caroline is fun and discreet.
"In fact, someone mentioned his name the other day and Caroline got flustered and went bright red."
Although Harry may have been speaking with Caroline he would only have been doing so as a friend, because she is currently dating music manager Jack Street.

Rod Stewart is moving back to the UK after almost 40 years.
The London born singer relocated to the US in 1975 to avoid tax - which at the time stood at 83 per cent for those earning the most money - but he is now planning on moving back to his homeland permanently so his youngest sons, Alistair, eight and Aiden, three, can be educated there.
When asked if his childhood home of Archway, London, still holds memories for him, Rod is quoted by Mirror.co.uk as replying: "Oh yeah. This place is still in my heart. We are planning hopefully on moving back in about 18 months so my kids can grow up here. It's not definite.
"But this is where me and [wife] Penny [Lancaster], this is where we come from."
Penny, 43, has also previously mentioned plans to move, saying: "Rod and I would like to move back ­permanently. It would be lovely for our kids to go to schools in England.
"We were both educated here. The children would be better off being educated here."
Rod has bought a £4.65million on a home in Essex ready for the family's return, but they will still keep their Beverly Hills home and split their time between the two.
Rod is a father to eight children in total with five different women, all of whom are now adults, apart from Alistair and Aiden.

Shep Gordon "trusted" Mike Myers to retell his life story because he is such a "good friend".
The veteran music manager helped promote a number of huge acts during his career - including Alice Cooper, Teddy Pendergrass and Pink Floyd - but until recently, had rejected all invitations to bring his story to the silver screen.
Reflecting on the documentary, 'Supermensch: The Legend of Shep Gordon', he told BANG Showbiz: "I met Mike on 'Wayne's World' and then he came to Hawaii and we became friends. He bought a house on Maui, where I live, and he loved all my stories and for years he's been asking me about doing [the film].
"I didn't see any reason to do it other than ego ... then I had some surgery, was heavily medicated and feeling sorry for myself. Later I called him and said, 'Yeah, let's do this'."
Despite being close friends now, Shep admits he and Mike disagreed over which Alice Cooper song - 'School's Out' or 'Freak My Frankenstein' - was to be included in 'Wayne's World' when they first met.
He added: "In the end, we compromised and put both in the movie, and we came away respecting each other. And then I heard he was in Hawaii and I invited him by for dinner and then started a real friendship."
'Supermensch: The Legend of Shep Gordon' is in cinemas now. See www.supermenschthemovie.com for more details.

Kodaline don't think "perfect" gigs exist.
The 'Love Like This' group don't have a specific "formula" for a successful show because they know every venue and audience is different.
Frontman Steve Garrigan told BANG Showbiz: "I don't think there are set key ingredients that act as a recipe for a perfect gig.
"Obviously the crowd and their reaction are very important but we treat each gig very differently and wouldn't apply one formula to make all successful.
"Plus there isn't such a thing as a perfect gig. You always make mistakes and the key to a successful gig is turning the mistakes into great, enjoyable music."
Steve also revealed the group have been working on the follow-up to last year's debut album 'In a Perfect World', but fans will have to wait until early 2015 to hear any new songs.
He said: "We've actually already started to work on our second album. When we haven't been touring we've been in the studio and are about half-way through so far so hope to finish it by the end of the year. That way we will be ready to share some new music with our fans early next year."
Kodaline were part of the stellar line-up for this year's Summer Series at Somerset House with American Express(r), just one example of the enriched entertainment experiences available to Cardmembers. For more insider information from some of the UK's most sought after events visit youtube.com/AmericanExpressUK.

Sophie Thompson has won 'Celebrity MasterChef'.
The 'Four Weddings and a Funeral' actress triumphed in the BBC cooking competition, and admitted it felt "ridiculous" to have been named the winner of the TV contest last night (18.07.14).
Speaking after her victory, she said: "I can't Adam and Eve it! Thank you so much, this has been the best fun.
"It's ridiculous winning something like this."
The star overcame tough competition from Jodie Kidd and Charley Boorman in the final, which was described as "incredible" by judges John Torode and Gregg Wallace.
Sophie was delighted with her big win, saying the whole contest has been "mad".
She added: "It's M for mad, the whole thing's been mad. I feel so thankful to all the people who's recipes I've used and abused, the 'MasterChef' team have been proper fantastic."
For her winning meal, she prepared duck stuffed with juniper berries as a starter, followed by a main of even roasted brill flatfish, while it was rounded off with a steamed cherry pudding for desert.
Gregg Wallace said: "Sophie's food is very much like her, it's original, it's individual, it has a style, it's different.
"She creates some absolute delights on a plate, they look like little stories to me; they just look amazing."

Luisa Bradshaw-White wants to focus on family rather than being "famous".
The 39-year-old 'EastEnders' actress - who plays Tina Carter on the soap - has admitted it was daunting joining such a popular TV show, but she has been able to cope thanks to her home life.
She said: "It frightened me.Years ago, people in 'EastEnders' were very, very famous and I never wanted that. But now you've got all the reality TV stars taking that place so actors can just get on with doing their job.
"Of course, if you want to be a celebrity you can, but when it comes to walking down the red carpet, there's a whole generation of 'EastEnders' stars younger than me who can do that.
"I can just be like a mum. The pressure to be beautiful is off me. I feel at ease as I'm not trying to be somebody I don't think I've ever been."
Meanwhile, Luisa - who joined the soap last year - admitted despite her success, "can't let go" of her role as a parent and partner.
She told The Sun newspaper's TV Magazine: "I've got a partner, Annette, and we've been together 15 years.
"I've been a stay-at-home mum for the past eight years and now Annette's taken a year out for the [two] girls.
"Although I can't let go of that role - I get home and still try to control everything."

Kourtney Kardashian is thinking about getting her son a modelling agent.
The 'Keeping Up with the Kardashians' star, who is expecting her third child with boyfriend Scott Disick, has revealed their four-year-old little boy, Mason, could follow in his aunt Kendall Jenner's footsteps and hit the runway in the future.
Asked if he might become a model, the 35-year-old star - who also has two-year-old daughter Penelope - said: "I don't know. He has such an attitude."
Her sister Khloé added: "He's very moody. He's very Kourtney-like. If he wants to do something, he will. If he doesn't, you can't get him to do anything."
However, Khloe also thinks that her nephew has the perfect personality for the catwalk, saying he is "kind of wild and fun, like the centre of attention."
The 30-year-old reality TV star also admitted Mason inspired a lot of their new Kardashian Kids collection.
She told People magazine: "It's like we have test-drivers. Kourtney dresses Mason so freakin' cute. He's such a fashionista."