Hip-hop producer -- and headphone mogul -- Dr. Dre tops Forbes magazine's list of The World’s 25 Highest-Paid Musicians for 2012. It doesn't hurt that he sold a Taiwanese electronics firm half of his Beats by Dre headphone company for $300-million!

He's the only American in the Top 5. The others are former Pink Floyd leader Roger Waters, thanks to the worldwide success of his The Wall tour; Elton John, U2 and the reformed British boy band Take That.