Anthony Ryan Leslie, professionally known as Ryan Leslie, is an American record producer, singer-songwriter, multi-instrumentalist and rapper from Washington, D.C. Founder of the media company NextSelection Lifestyle Group, Leslie has produced singles for a number of artists in a variety of genres, ranging from R&B/hip hop to pop to gospel. From 2005–2006, he had his most commercial success to date with NextSelection/Bad Boy/Atlantic recording artist Cassie and her single "Me & U". Leslie's debut album, Ryan Leslie, features the songs "Diamond Girl", "Addiction", and "How It Was Supposed To Be". He was nominated for a Grammy in 2011.