Swift says she's grateful for the selection. She says her year was full of "golden and shiny" memories.
Swift was seemingly everywhere in 2009, whether performing hits such as "Love Story" and "White Horse" or having her acceptance speech at the MTV Video Music Awards interrupted by Kanye West.
She also hosted "Saturday Night Live" and performed at the Grammys.
Her second album, "Fearless," came out in late 2008.