Here's another hot new couple for ya! Kirsten Dunst and Garrett Hedlund have been rumored to be dating for months, but the adorable couple finally took their romance public on Monday night at the Sundance Film Festival in Park City, Utah.

According to Us Weekly's on-lookers, the couple took their PDA to the after party of Dunst's film Bachelorette. "Before leaving the party at 1:30 am, Kirsten and Garrett stopped to make out in the middle of the bar," the witness reported. "He put his arm around her and then she pulled back and then they kissed again!" Another source revealed that the duo stayed on the dance floor together for most of the night.

Kirsten Dunst at MOCA Gala; Garrett Hedlund at Young Hollywood Awards

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However, despite the couple's PDA packed trip, a source previously told the mag that their relationship is not too serious, although maybe things have changed since then! Hedlund is known for his films Tron and Country Strong and even had a dinner date with Taylor Swift last year -- lucky guy!