Train Gets Jolly with "Shake Up Christmas"

The band's new music video boasts live footage and a special guest star: Kris Kringle!

PEOPLE TV | Today's Line-Up

Off-Duty Hollywood

Beyoncé & Jay-Z Celebrate the Nets Win
Up Close

J. R. Martinez: Nervous & Excited to Be a New Dad
Time Machine

Drew Barrymore's Changing Looks!
Up Close

The Cougar Town Cast Plays Matchmaker for Courteney Cox
Up Close

The Biggest Loser's Dolvett Quince Reveals His Biggest Fear