It's said that all great artists get their inspiration from other great artists, and will.i.am is one of many who have been accused of taking too much. His most recent crime -- allegedly stealing a track from house producers Mat Zo and Arty for his new single "Let's Go" -- is only one of a handful of incidents in which the Black Eyed Peas singer has encountered plagiarism claims.
He's also only one entry on a long list of popular musical acts whose originality has been called into question. Even the most iconic artists, including Madonna, Radiohead and Led Zeppelin, have been slammed with copyright-infringement claims, and many haven't emerged victorious. Here's a look at 10 prominent artists who've battled accusations of musical fraud.