Review: Marshmello Can't Escape Monotony on 'Joytime II'

The ascent of Marshmello, a young electronic producer known as much for his goofy helmet (white, cylindrical, two X's for the eyes) as his chart success (four Top 40 hits in the past seven months, upward of 2 billion total streams), shows the enduring importance of arena-scale dance music in the pop landscape.EDM's fortunes have waned, it's true. But as producers who ruled the charts in 2011 and 2012 lick their wounds at the bar in Hakkasan, the youngsters are capitalizing on a new set of opport