Listen to Michael Buble Radio on iHeartRadio

Michael Buble Radio

Michael Buble celebrated his holiday show in New York City this week with one of the biggest pop stars of 2014: Ariana Grande. Michael and Ariana teamed up to sing the Christmas classic "Santa Claus Is Coming To Town," and they performed an amazing, jazzy rendition of the holiday favorite.

Ariana thanked Buble for including her in his special this year on Twitter.

"Michael Buble's Christmas In New York" show also included Barbra Streisand, the Rockettes ... and even Miss Piggy! 

Watch Michael Buble and Ariana Grande's "Santa Claus Is Coming To Town" duet below:

[HD] Michael Bublé & Ariana Grande - Santa... by IdolxMuzic

Photo: Getty Images