Gomez hit up the CAA afterparty at Sunset Tower and confirmed her breakup with Bieber. "Is it true?" the Wizards of Waverly Place actress' unidentified pal asked. "Yep, done!" Gomez replied. The Disney Channel star also admitted her trip with Bieber to Puerto Vallarta, Mexico, was "awful. . . We were fighting."

(The pair flew south of the border for a New Year's trip, but their happy holiday was cut short when Gomez abruptly flew home to L.A. on Dec. 30. "They had another huge fight, and Selena won't forgive him," an insider told Us at the time.)

Gomez and Bieber -- who broke up several times after first getting together in November 2010 -- are done for good, a source recently told Us. "Selena is done with him."