The first two Black Eyed Peas albums are wildly different from anything else they did. They stopped being a hip-hop group and became a pop band. U2, Radiohead

The first two Black Eyed Peas albums are wildly different from anything else they did. They stopped being a hip-hop group and became a pop band. U2, Radiohead, Kate Nash, Metallica, Coldplay have also dramatically changed musical direction and lost/gained fans in the process.