Credit: Fame Pictures; Jeffrey Mayer/

Party in the USA? Hardly.

Miley Cyrus let loose at Parisian hotspot VIP Room with Twilight's Ashley Greene Sunday night. With a lollipop in hand, the 17-year-old pop star (clad in a revealing lace top) danced the night away to the beats of DJ Ruckus.

"She was with one bodyguard and two girlfriends," an eyewitness tells The source adds that she was having a good time, but didn't act "too crazy."

Earlier in the night, Cyrus looked slightly more reserved in distressed tights and a flannel shirt as she ate dinner at Hotel Costes on Rue Saint-Honoré. Check out more pictures of Miley and Ashley in Paris.

Cyrus and Greene -- who are in the midst shooting in the comedy LOL: Laughing Out Loud (a remake of the popular French film) -- admit they're both falling in love with the City of Light.

"I want to take my hotel room and replicate it at home. So romantic," Greene, 23, tweeted Saturday. "Love, Love, Love Paris already."