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.