Jelly Roll Slips On a ‘Mello Head to Tease ‘Holy Water’ Collab With Marshmello The big beat country tune from the duo is due out on Friday (Aug. 8).

Last week, Marshmello got the hype machine rolling on the project some fans are referring to as “MarshJello” or JellyMello” with a private jet pic of himself in his ‘Mello head holding an ...

But his upcoming collab will take the "Son of a Sinner" singer a bit further out of his zone when he drops the beat-infused track "Holy Water" with dance music producer Marshmello on Friday (Aug. 8).