Rising Swedish artist Elliphant premiered a new track, 'Boom Your Head Up', at the Grammis last night. The impossible-to-categorise Ellinor Olovsdotter performed the aggressive, swaggering track at the Swedes' equivalent of the American ceremony and was accompanied by a choreographed display of riot shield wielding dancers. The emergence of the song comes almost straight after the release of her single 'Live Till I Die' which was also released yesterday, and 'Down on Life' which had a December release. Watch her performance above.