[2] Lorentzen's breakthrough came in 1991 with her performance of Kjersti Alveberg's Lokk in the Eurovision contest for young dancers.
In addition to classical roles such as Odette and Odile in Swan Lake, she has performed as a modern, untraditional ballerina in modern works choreographed by George Balanchine, Glen Tetley, Jiří Kylián, Paul Lightfoot and Sol Lèon and Nacho Duato.
In 2001, she received the Norwegian Dance Critics Award for her interpretation of Kim Brandstrup's Place of Stone.
She played the leading role in the film and stage production of Lille Frøken Norge (2003).
[2] On 1 August 2012, she was appointed artistic director of the Norwegian National Ballet for a period of five years.