From Def Leppard to Chuck Berry, U2, Tom Petty, Weezer and Eric Clapton, the best Christmas rock songs are satisfyingly turkey-free. It’s not just Santa Claus making lists and checking them twice.

At the start of the The Eras Tour, Taylor revealed that she had two rules when it comes to playing surprise songs more than once. Rule 1: If she messed up, she's allowed to play it again. Rule 2 ...