NBC is gathering friends for Letters to Santa -- A Muppets Christmas.

According to The Hollywood Reporter, Whoopi Goldberg, The Sopranos alums Tony Sirico and Steve Schirripa, Harry Potter regular Richard Griffiths and Madison Pettis are set to star in the special alongside Kermit, Fozzie, Gonzo, Miss Piggy and the rest of the muppets gang.

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Letters to Santa -- A Muppets Christmas is set on Christmas Eve when Kermit and company mistakenly avert three letters en route to Santa Claus, which triggers a race against time to bring a happy Christmas to the kids whose wishes were lost in the mail.

The special, from Muppets Prods., will feature songs by The Muppet Movie songwriter Paul Williams.