A man with a bowl shaped, and shaggy haircut. The most famous mop tops were The Beatles, who popularized the mop top style cut in the 60s, when their manager told them that the public wouldappreciate them more if they wore the hairstyle.
The best album ever made, by the Beatles. The cover has over 70 people on it, and it itself contains 13 tracks, including Lucy In The Sky With Diamonds, Lovely Rita, and A Day In The Life. It topped the Rolling Stone's list of top 500 albums, and is by far the band's best album, selling millions of copies.
Sgt. Pepper's Lonely Hearts Club Band is the best. Album. Ever. Period.