Taylor Swift and Jake Gyllenhaal splitTaylor Swift and Jake Gyllenhaal rang in 2011 solo and according to several reports, the couple have split.

"They're over," a source tells PEOPLE. "It ended last month."

The pair were first spotted together at a 'Saturday Night Live' taping in October, but the duo had a PDA-filled weekend over Thanksgiving.

Swift and Gyllenhaal were last seen publicly together on Dec. 9. Rumors first surfaced about their alleged split after Gyllenhaal was not in attendance for Swift's 21st birthday party a few weeks ago.