Stephen Paul Manderson (born 27 November 1983), better known by his stage name Professor Green or simply Pro Green, is a British rapper, songwriter, television personality and mental health activist from London. Growing up on a council estate in east London, Green went on to become a multi-platinum artist, with 3.5 million combined sales in the UK. He is the former co-host of Lip Sync Battle UK on Channel 5. His autobiography featured on the Times bestseller list, and he is the patron of the suicide prevention charity CALM.