Taylor Swift Starts Crazy Dance Party at Golden Globes Bash With Hailee Steinfeld, Sarah Hyland: Pictures

Odeya Rush, Sarah Hyland, Jaime King, Taylor Swift and Hailee Steinfeld attend The Weinstein Company & Netflix's 2014 Golden Globes After Party presented by Bombardier, FIJI Water, Lexus, Laura Mercier, Marie Claire and Yucaipa Films at The Beverly Hilton Hotel on January 12, 2014 in Beverly Hills, California. Credit: Joe Scarnici/Getty Images

All she wants to do is dance, dance, dance! Taylor Swift was in a very festive mood after the 2014 Golden Globe Awards on Sunday, Jan. 12. Despite losing "Best Original Song" to U2's Bono, the "Sweeter Than Fiction" singer couldn't wait to keep the party going.

Changing out of her floor-length Carolina Herrera ball gown and into a flirty, crocheted Julien MacDonald number, the 24-year-old country-pop superstar joined pals Jaime King, Sarah Hyland, and Hailee Steinfeld at the Weinstein Company's post-Globes bash at the Beverly Hilton Hotel's Old Trader Vic's. Not long after arriving, the group broke out into a raucous, impromptu dance party.

"Everyone was really into it," an eyewitness told Us Weekly of the ladies, noting that they were "literally jumping and dancing" to the likes of R. Kelly, Jay Z, and Rihanna. "Taylor was basically dancing as if she was at a heavy metal concert and loving it."

"They were dancing HARD," another source added. "Taylor had a flute of Moet [& Chandon champagne] in her hand and was dancing and singing along to Def Leppard's 'Pour Some Sugar on Me.' Jaime King and Taylor were grinding along to the song, facing each other, but not in a sexual way."

The girls "kicked it up a notch" further and got "really into it" when M.I.A.'s "Paper Planes" came on, the onlooker said. They only stopped once the DJ started playing Lorde's "Royals."

Swift and her pals were the life of the party -- and even attracted the attention of actor Peter Facinelli and his pals. A source told Us that the Twilight actor was excited to hear that the singer was at the bash but that he hesitated to approach her. By the time he and his friend got up the nerve to walk by, she was getting ready to leave -- so they "chickened out."