Taylor Swift on the set of new music video (PacificCoastNews.com)Taylor Swift is known for her casual style and her long blond hair, but that all changed Sunday night when the 22-year-old songstress rocked a new look — a short haircut with pink tips — on the set of her "I Knew You Were Trouble" in Los Angeles. Plus, Jordin Sparks and Jason Derulo engaged in some serious PDA at Sunday night's American Music Awards, and we're taking a look at some of last week's wackiest ensembles that might just have you saying, "What Were They Thinking!?"
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