Lofthus has had a major influence on Norwegian music through studio work, live concerts and teaching at Norwegian Academy of Music, University of Agder (the Faculty of Fine Arts) and at UiT (The Arctic University of Norway) where he is associate professor.
Based in Oslo, he now tours Norway and Europe with different bands and artists. And he is the drummer of the well known jazz band Elephant9.
He plays several genres, well known with both jazz and pop music. He has been the most sought drummer in Norway recent years, if not on tour with Vamp, Jarle Bernhoft, Oslo Gospel Choir, Mathias Eick or Marit Larsen, he collaborates with Maria Mena, Kurt Nilsen, Torun Eriksen, Bertine Zetlitz, Silje Nergaard, Eivind Aarset, D’Sound, Noora Noor, The Norwegian Radio Orchestra, Jon Eberson and Per Zanussi, to mention a few, both in studio and on stage.