Ashley Greene stepped out of her Michigan hotel yesterday and happily signed autographs for fans before heading to the Jonas Brothers concert last night. She's been in Detroit filming LOL with Miley Cyrus and managed to slip away from the set for a few hours to catch up with her boyfriend, Joe Jonas. Ashley has been hard at work on her movie, but was also recently able to plan a weekend getaway to see Joe in NYC. She made the most of her Summer by working on her tan sporting a two-piece in Vegas and adding to the season's hottest bikini and shirtless looks. She'll have to lose that sun-kissed color by the Fall, however, when she gets back into Twilight mode for Breaking Dawn.