A Daily Mail
source confirms that Bloom "took a swing" at the 20-year-old singer at Cipriani restaurant. "Justin was being cordial, and everything was fine. But then Orlando was annoyed when he saw it was Justin and instigated by taking a swing at Justin," the British publication's source says. "Justin ducked, and Orlando's punch missed. People intervened, some minor pushing, then they were separated. Justin stayed for a while after."