Gordon Gano was also featured on the Lost Bayou Ramblers' 2012 release, Mammoth Waltz, along with guest artists Scarlett Johansson and Dr. John. Besides the diverse list of guests, Mammoth Waltz was a musical breakthrough for LBR and the genre as a whole, drawing on influences from the modern soundscape beyond the genre. The result was a passport to play for audiences who may not have known Cajun music, but who appreciated Lost Bayou Ramblers for their music, not their genre. Although Mammoth Waltz is 100% in Cajun French, it acted as an invitation for all music lovers to tune in to the hypnotic Cajun rhythms Lost Bayou Ramblers have been known for since their inception in 1999.