Christopher Francis Ocean, better known by his stage name Frank Ocean, is an American singer-songwriter and rapper. Ocean started his career as a ghostwriter for artists such as Brandy, Justin Bieber, and John Legend. In 2010, he became a member of alternative hip hop collective OFWGKTA also known as Odd Future, and his debut mixtape, Nostalgia, Ultra, was released to critical acclaim in 2011. The singles "Novacane" and "Swim Good" both achieved chart success. In 2012, Ocean finished second place in the BBC's Sound of 2012 poll. His debut studio album, Channel Orange, was released in July 2012, promoted with three charting singles: "Thinkin Bout You", "Pyramids", and "Sweet Life".