I think it was actually just the song distorting. I'm not sure why though. I tried listening to the same song "Bohemian Rhapsody" on my Beats Solo's and it did the same thing. Its hard to explain, but instead of the audio projecting properly, it sort of popped, and the frequency on both headphones maxed out. It only does this is the especially high parts of the song, such as the instrumental solo's.