The 21-year-old singer hit the stage with Michael to show off her amazing vocals on one of JJJ‘s favorite holiday songs, “Santa Claus Is Coming To Town”.
“Thank u @michaelbuble for having me on your christmas special & for the kind words! u & your band are the greatest! thank u for including me,” Ariana wrote on her Twitter after the show.
Check out Ariana and Michael‘s performance below!
Michael Buble & Ariana Grande sing “Santa Claus is Coming To Town”