David Seisay (aka MC Stranger aka D-Flex) is an award-winning Swedish-American songwriter, musician and entrepreneur who became famous as a rapper in Rob'n'Raz but is equally well known for his twenty-year career as one of Sweden's most prominent personal trainers.
He is the founder and CEO of D-Flex House of Fitness, a company that provides health and wellness services.He co-wrote the song 'One Step Closer To You' for B-Boys International and performed with them at the semi-finals of the 2005 Eurovision Song Contest.
In 2009 he scored an international hit with the song 'Touch You Right Now' which he co-wrote with Peter Thelenius.