Singer says the drug helped make him "incredibly productive"
The Blur frontman's debut solo 'Everyday Robots' is released on April 28
The band pulled out of the Australian festival citing poor organisation
The track features guest vocals from Brian Eno
Albarn played solo material as well as Gorillaz, Blur and The Good, The Bad and The Queen tracks
It is the Blur frontman's song for an orphaned baby elephant
The event takes place from July 10-13 in Novi Sad, Serbia
Blur and Gorillaz star performed career-spanning set at inaugural event in Manchester
Albarn visited communist nation as part of a 'mad spell' of travelling in 2013
The song comes from the NME Award winner's solo debut 'Everyday Robots'