Rasmussen was born in Viborg, Denmark and studied dramaturgy and music at Aarhus University exploring his love of the arts.
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As well as working as teacher Rasmussen is the lead singer and frontman of the 1980s cover band Hair Metal Heröes, which performs covers of songs by artists such as Van Halen, Europe, Bon Jovi, Def Leppard, and Scorpions among others!
He has also worked as a stage actor, performing in stage productions of musicals such as West Side Story, Rent and Les Misérables in Aarhus and Holstebro.
In January 2018, he was confirmed to be taking part in Dansk Melodi Grand Prix 2018 with the song "Higher Ground" where he went on to win the competition and represent Denmark in the Eurovision Song Contest 2018 in Lisbon,