While Dr. Dre has been named the top-earning rapper by Forbes earlier this year, the magazine has also just named him the top-earning musician across the board, raking in $110 million this year, largely thanks to the success of his Beats By Dre headphones line. The #2 spot goes to Pink Floyd bassist/vocalist Roger Waters at $88 million, Elton John at #3 with $80 million, U2 at #5 with a combined $78 million, and Take That (?) with $69 million in the #5 slot. Take that, Bieber.