There are few songs that instantly give you the euphoric feeling every time you hear that song. “Levels” is one the songs. Despite introducing an early instrumental during an appearance on BBC Radio 1's Essential Mix in December 2010, Avicii didn't actually premiere “Levels” with Etta James' vocals until Ultra Music Festival in March 2011.
Since its release, “Levels” went viral with millions plays from around the world. Several critics even consider “Levels” being one the best EDM songs all time due to its euphoric melodies, and Avicii's incredible way to entice his listeners.
Avicii Premieres ‘Levels' At Ultra 2011