Yesterday fans could live stream Usher's performance at London's Hammersmith Apollo on YouTube as part of the American Express Unstaged music series. The entire concert – which was directed by Hamish Hamilton and found the singer interacting with fans who were live-tweeting during the concert – is available to watch now, with Usher busting out plenty of hits, from "Love in This Club" to new ones from his latest record, Looking 4 Myself, such as the smash "Climax."