Earlier this week, it was announced that the comedian will host Street of Dreams, a live musical version of Coronation Street which makes its debut in Manchester next year.
Composer Trisha Ward has penned the production, which features songs from her 2010 album Coronation Street - Rogues, Angels, Heroes & Fools.
O'Grady told This Morning today: "I'm looking forward to it. Trisha Ward [has written] all the songs and they're brilliant because they're written for the characters. Nobody else could sing them, so Hilda's song 'Woman Stanley Woman', is tailored exactly for Hilda and Stan.
"And they're brilliantly written. There's some beautiful ballads. That's the first I heard of it - I was sent the album."
As previously revealed, Julie Goodyear will return as Bet Lynch for the show, along with Kevin Kennedy as Curly Watts and Brian Capron as Richard Hillman. Current stars will include Bill Roache (Ken Barlow) and Katy Cavanagh (Julie Carp).
O'Grady continued: "We've [also] got very good actors representing the cast who've passed away and the older cast who've retired. Some of them are just brilliant. The actress who plays Ena Sharples - wow, she's fantastic and she's got Ena's diction.
"I narrate it, but I interact with the characters - so I go into Elsie Tanner's house with Dennis, and I go into the Barlows', I go into The Rovers and I do a tango with Vera Duckworth."
Street of Dreams will open at Manchester's M.E.N. Arena on Wednesday, March 21. Tickets went on sale today.
> Coronation Street live musical stage show announced
> Read more Coronation Street news and spoilers
Watch a promo for Coronation Street's Street of Dreams musical below: