Their raucous sets include a rotation of up to 29 instruments on which that the four women are self-taught, including the tuba, the balalaika bass, drums, harmonica, piano, banjo, accordion, mandolin, guitar, melodica and trumpet. Katzenjammer also caught the attention of David Byrne, who invited them to open his artist-curated stage at 2009's Bonnaroo, alongside Santigold, the Dirty Projectors, Dave Byrne and Brian Eno, later ending their US run with a stop at Summerfest opening for Elvis Costello.

Le Pop, which was produced by Kåre Westrheim and Mike Hartung (Marit Larsen, Superfamily), showcases the ladies eclectic blend of genre influences. The album earned Katzenjammer a nomination for "Newcomer of the Year" at the Norwegian Grammy Awards, but also the distinct honor of opening the show with their hit single "A Bar In Amsterdam."

Katzenjammer, which consists of Solveig Heilo, Anne Marit Bergheim, Turid Jørgensen and Marianne Sveen will kick off a US Tour this June in addition to joining the 2010 Lilith Tour, along with artists like Sarah McLachlan, Mary J. Bilge, Norah Jones, Loretta Lynn, Sugarland, Metric, Sia and more!