American Idol - Top 5 - Idols Sing Neil Diamond

According to Wikipedia:

Neil Diamond is, arguably, one of the most popular and successful singer/songwriters of all time. He scored a number of hits in the 1960s, 1970s, and 1980s. From the 1960s to the 1980s, Diamond was a successful pop music performer, scoring a number of hits worldwide. As critic William Ruhlmann writes, "As of 2001, he claimed worldwide record sales of 115 million copies, and as of 2002 he was ranked third, behind only Elton John and Barbra Streisand, on the list of the most successful adult contemporary artists in the history of the Billboard chart."