Oliver Heldens takes HI-LO alias for a spin on Mike Cervello-assisted single, ‘Impulse’ Oliver Heldens' alter-alias HI-LO is out to play again on a new joint effort with Mike Cervello titled 'Impulse.' Related Posts: Oliver Heldens and Firebeatz present ideal shuffling soundtrack, ‘Lift Me Up’ NMF Roundup: Madeon reveals ‘Good Faith,’ deadmau5 takes to the skies on ‘SATRN’ + more