Lead singer and rhythm guitarist for the British pop/rock band The Vamps alongside bassist Connor Ball, lead guitarist James McVey and drummer Tristan Evans. The Vamps' first record contract was with Mercury Records.
His parents are Anne-Marie and Derek Simpson. He co-owns "Simpsons Gin Bar" with his family in Sutton Coldfield, Birmingham England. He has an older sister named Natalie, who became The Vamps' first official band photographer. He has had a dog named Jesse. He has been romantically linked to Lauren Jauregui.
He and The Vamps supported Selena Gomez when she played London's Hammersmith Apollo in September 2013 on her Stars Dance Tour.