Lövgren is a schooled jazz musician, influenced by Dave Holland, John Scofield, Medeski Martin & Wood, Miles Davis and Brad Mehldau.

In the late 1990s, Lövgren held the enviable assignment of touring bass guitarist for both Arch Enemy and In Flames.

He also released a highly acclaimed fusion-jazz album, Lounge, with the Swedish Nica Group ensemble.

All tracks were composed by Lövgren, and the album shows his creativity as well as jazz-styled playing skills.

In September 2010, Lövgren was accepted into the Gothenburg Music University to study improvisation and composition with Anders Jormin, the Swedish jazz double bass player, arranger and bandleader who has worked with numerous jazz artists, such as Bobo Stenson, Charles Lloyd, Tomasz Stańko, Don Cherry, Elvin Jones, Gilberto Gil, Lee Konitz, Joe Henderson, Kenny Wheeler and Jon Balke.