Even Hollywood stars are big fans of other celebs! ActressRachel McAdams jumped around like a crazy fan on the set of her new movie Morning Glory in Manhattan yesterday after meeting rapper 50 cent! 50 arrived on set at the hotel in NYC and Rachel ran right up to him with a huge smile on her face and gave him her business card. In the movie Rachel plays a news anchor journalist, so maybe she was still in character? Either way, 50 seemed quite happy with all the attention!