Niklas Karlsson trained at the Ballet Academy of Gothenburg and has previously performed in Grease at Skaraborgs Länsteater, Les Misérables at the Göteborg Opera, The Wizard of Oz at Lisebergsteatern and Sven-Ingvar’s Mer glöd än nånsin at Rondo and Tyrol. In 2002, Niklas established the group JEERK. In Sweden they have toured with Riksteatern and performed in the stage show Overload at The Göteborg Opera. They have also appeared in Allsång at Skansen, Melodifestivalen, the opening of the European Athletics Championships, Let's Dance and Lill-Babs 50 Years as a Performer. Since 2009 they have toured the US, with a six-month detour to the Dominican Republic. They are currently working on their next album, which is due for release in 2015.