Thomas Troelsen (born 6 October 1981) is a singer, songwriter, and producer from Denmark. Troelsen has written and produced songs for Pitbull, Flo Rida, Nile Rodgers, Robin Thicke, Chris Brown, Junior Senior, Robin Schulz, Akon, Inna, Alexandra Burke, Monrose, and Aura Dione.

In 2014, Troelsen co-wrote and co-produced “We Are One (Ole Ola),” the Official 2014 FIFA World Cup Song, featuring Pitbull, Jennifer Lopez, and Claudia Leitte.

In 2015, Troelsen co-wrote 3 songs for the new Flo Rida EP My House, including "I Don't Like It, I Love It" feat. Robin Thicke and "Here it Is" feat. Chris Brown. Troelsen also co-wrote the song "Back in the Old School" for Chic feat. Nile Rodgers and the upcoming single "Heatwave" for Robin Schulz feat. Akon.