Troelsen has written and produced songs for Pitbull, Flo Rida, Justin Bieber, David Guetta, Lil Wayne, Drengene fra Angora, Nile Rodgers, Jason Derulo, Charlie Puth, Chris Brown, Afrojack, Akon, Meghan Trainor, Girls' Generation, SHINee, EXO, NCT Dream and Junior Senior.
He also co-wrote, co-produced and is a featured vocalist on the Lil Wayne song "Can't Be Broken" from the platinum album Tha Carter V. In 2016, Troelsen co-wrote "I Love Me" by Meghan Trainor and This One's For You by David Guetta featuring Zara Larsson, the UEFA 2016 official song.
In 2014, Troelsen co-wrote and co-produced "We Are One (Ole Ola)", the Official 2014 FIFA World Cup Song, featuring Pitbull and Jennifer Lopez.
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.
Other major K-Pop songs written and produced by Troelsen include SHINee's "Love Like Oxygen", EXO's "History," and TVXQ's "Humanoids."