Michael Buble

The sweet sounds of Michael Bublé will once again serenade viewers during the holiday season when the Canadian crooner headlines his third annual NBC special (Wednesday at 10/9c). "This year, the show is more music-driven and diverse," says Bublé, who included skits in past shows. "I stripped it down and have a sing-along with the audience."

Additionally, the Grammy winner will sing alongside "All I Want for Christmas Is You" superstar Mariah Carey, as well as Mary J. Blige, who will belt out tunes from her recently released holiday album. As if the two R&B divas didn't have enough star power, Bublé will also welcome a famous furry friend to share the intimate stage with him in Vancouver. "I duet with amazing vocalists and perform with Cookie Monster," reveals the new father, who has something special to celebrate this time around. "Christmas has always been my favorite holiday, and I especially look forward to this year, as it will be my son Noah's very first with the family."

So did his baby boy inspire Bublé to recruit one of Sesame Street's finest for a truly blue Christmas? Not quite — but he is mindful of the youngsters watching at home. "I've always had a character in the show, because Christmas is about the kids." (Last year, Cookie Monster's friend Elmo was a special guest.)

Even with all the big stars joining in, there's still one celebrity Bublé has on his wish list for Santa: Will Ferrell. "Maybe one day!" he says with a laugh. Here's hoping that if Ferrell does appear, he'll do so as Buddy the Elf, not as booze-swilling anchorman Ron Burgundy.

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