Don't be the last to listen to the annual "Halloween" mix by RL Grime. In a tradition that's five years strong, this mix continues Grime's pattern of getting a major celeb intro: This time he nabs Skateboard P himself to set you up for the sonic journey to come. But that's not even the coolest part...listen for a drop from your favorite kids' books author as well. Halloween falls on a Monday this year, but you'll be celebrating all weekend, we're sure. "Halloween V" obviously should be your soundtrack.