Gustafsson was born in Goteborg Sweden He studied at the Calle Flygares Theater School in Stockholm to become an actor But before his debut as an actor he had already debuted in 2005 as a standup comedian at Bungy Comedy a Swedish club for standup beginners In 2006 he enrolled at Standup Star a standup school where among others Özz Nûjen and Jakob Öqvist two of the most wellknown comedians in Sweden have attended As of 2008 his most notable appearance was in Melodifestivalen 2008 the Swedish selections for the Eurovision Song Contest For example he sang a song to Kristian Luuks the host girlfriend Carina Berg In his song he declared his love for her Afterward Berg said that she had to hide her cheeks so people couldnt see that she was blushing Gustafsson gained a certain degree of international fame following a World of Warcraft WoW joke in Parlamentet talking about people wasting time on the internet and not contributing to their partys effort by playing inefficiently using so much internal WoW terminology himself that he was incomprehensible to nonplayers The scene was spread over the Internet mainly on YouTube where translations into other languages could also be found In 2008 Björn received big media attention by great efforts in Parlamentet and as an entertainment in the breaks to Melodifestivalens and he also got voted as the Swedens funniest man by Aftonbladets readers on 6 March 2008 He also read the Swedish votes at the Eurovision Song Contest 2008 He continued his standup shows at the big stage in the 44th Guldbagge Awards in 2009 together with Johan Glans and with Robert Gustafsson in the Svenska idrottsgalan 2009 Swedish athletics awards where he also presented the nominations for rookie of the year