Electric Picnic differs Change from other festivals in Ireland in that the music choice is more eclectic than the other mainstream events ( its history includes international acts such as Kraftwerk , Röyksopp , Nick Cave , Sonic Youth , New Order , Björk , Arcade Fire , Beastie Boys , The Stooges , The Chemical Brothers , Gary Numan , The Flaming Lips , Sigur Rós and Sex Pistols ) , and there is more emphasis on quality festival services Supply ( such as food and sleeping arrangements ) and a generally more positive and relaxed atmosphere .