Taylor Swift is Jingle Ball Jolly

Taylor Swift jams out back-to-back with badn mate Caitlyn on stage at the KIIS FM‘s Jingle Ball 2009 at Nokia Live in Los Angeles on Saturday evening (December 5).

The 19-year-old musician headlined the whole event, bringing a show with her.

Taylor shared backstage about her recent award nominations and wins, “I can’t even believe what’s been happening in the last couple of months. The Grammy nominations — getting that phone call and seeing that on TV, it was one of those things that I’m never going to forget. I wrote it in my diary that night in giant marker letters, ‘I can’t believe this!’ It’s been so amazing.”

10+ pics inside of Taylor Swift shining on stage…