(b.14. June 1962 in Glostrup, Denmark) is a Danish singer and actor. Rossen was trained from Guildhall School of Music and Drama in 1990 but he was already known in a wider public when he in 1988 was No. 4 in Dansk Melodi Grand Prix with the song "We Dance Rock & Roll". Shortly afterwards, he was a part of the ensemble of Victor Hugo's Les Misérables in City of London and three months later offered the leading role as Jean Valjean in the same show. He has since appeared in several musicals including Chess and Østre Gasworks, setup Les Misérables, when he took over the role from Kurt Ravn.