Vote For Your Best Songs Of 2015

Which song really was the top track of the year? Cast your vote here!

Let Justin Bieber And Jack U Be Your Lesson In Trust

Diplo and Skrillex explain how their Justin Bieber-assisted single "Where Are Ü Now," came to be.

Watch Halsey Give Her Best Paramore And Foo Fighters Impersonations At Hangout Fest

Halsey impersonated Foo Fighters, Paramore, Tove Lo and Jack U at the 2015 Hangout Music Festival.