dons a chic Marc Jacobs Resort
look at the Jennifer's Body
Hot Topic Fan Event at Hollywood and Highland on Wednesday (September 16) in Los Angeles.
The 23-year-old actress, who is dating her Mamma MIA!
costar Dominic Cooper
, recently admitted that she has roller-coaster emotions. "I suffer from anxiety attacks a lot, she explained to Allure
. "Like, the other day, I had an attack in the middle of