The Alice Cullen actress was in quite the jovial mood as she joined a group of friends and her "Camp Rock" beau Joe Jonas for the Sin City soiree.
During the course of the festivities, Miss Greene was presented with a huge decorative cake as revelers belted out a rendition of "Happy Birthday" - during which Mr Jonas joined in on the song.
With Caitie Uhlmann, Ted Gibson and Mary Kasnias among the other attendees, the group also enjoyed a sitdown dinner at the Social House prior the the Pure nightclub fete.
Enjoy pics of Ashley Greene:
With Caitie Uhlmann, Ted Gibson and Mary Kasnias among the other attendees, the group also enjoyed a sitdown dinner at the Social House prior the the Pure nightclub fete.
Enjoy pics of Ashley Greene:
