The best part of Christmas: The Rock singing 'Here Comes Santa Claus' in a onesie

Carly Mallenbaum

USA TODAY

Dwayne "The Rock" Johnson can sing. In fact, he told USA TODAY that he'll be showing off his massive pipes in musical Disney movie Moana.

But before you hear the big guy croon as an animated character, you can watch him sing a Christmas song. In a onesie.

Observe: The Rock singing an Elvis-influenced Here Comes Santa Claus on Live With Kelly & Michael. (Notice Michael Strahan's amazing reaction.)

A new hashtag is born:

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