Thomas Grennan (born 8 June 1995) is an English singer-songwriter from Bedford, who is based in London. Grennan found fame as the guest vocalist on Chase & Status's "All Goes Wrong", which was featured as the Hottest Record on Annie Mac's BBC Radio 1 show, and later performed by Grennan on the BBC Radio 1 Live Lounge and on BBC Two's Later... with Jools Holland.
Grennan comes from an Irish family. He attended St Thomas Moore Upper School in Bedford. At the age of 18, he was attacked on the street and was left with four metal plates and screws in his jaw that "still hurt when winter comes".[4] He trained to become a professional footballer, playing for Luton Town for a while, also trying for Northampton Town and Aston Villa; he was later released. Grennan is a lifelong supporter of Manchester United.[5] He also worked briefly at Costa Coffee. He told Music Week: "I was close to playing over in the States but something was telling me not to and obviously it was the music".