Tricky Stewart
Christopher "Tricky" Stewart (born January 4, 1974) is an American songwriter, music producer, music publisher, executive producer, recording industry executive and recording studio owner. In a career that spans 30 years, Stewart, at the helm of his company RedZone Entertainment, is responsible for more than 25 million records sold. He is known for producing many chart-topping pop and R&B singles, such as Beyoncé's "Single Ladies (Put a Ring on It)", Britney Spears's "Me Against the Music", Mýa's "Case of the Ex", Rihanna's "Umbrella", Mary J. Blige's "Just Fine", Mariah Carey's "Touch My Body" and "Obsessed", Jesse McCartney's "Leavin'", Justin Bieber's "Baby", Ciara's "Ride", Nicole Scherzinger's "Your Love" and many others.