Jonas Brothers' Joe Jonas and 'Twilight' actress Ashley Greene have ended their romance, according to People magazine, and now Greene has her eyes on someone else -- Kings of Leon bassist Jared Followill.

Greene and Jonas only started dating last summer, going public with their relationship last fall after secretly dating for a few months. But since Greene's 24 birthday party in Las Vegas, the pair have been spotted separately at various clubs in the Los Angeles area.

And now we may know why.

Greene made headlines on St. Patty's Day when she showed up in New York City to visit her father with a new man on her arm, Jared Followill. While Greene hasn't come forward saying the two are dating, she did send out a tweet following her outing, stating, "Good food. Good friends. Great day. Now I'm at home watching beauty and the beast haha. Super cool."

Look for Jonas to appear on the cover of the latest Details magazine where he talks about his new solo album, which is slated for release this summer.