sentences:  He was a friend of Bob Marley when he resided in the UK and performed "Happy Birthday Mr. President" for Nelson Mandela in 1996 on his trip to Brixton.He gained widespread fame after appearing on the UK television programme "Dragons' Den", where he gained £50,000 funding for his Reggae Reggae Sauce.Levi Roots' Reggae Reggae Sauce is a jerk barbecue sauce.