"I'm a Believer" is a song composed by Neil Diamond and recorded by The Monkees in 1966 with the lead vocals by Micky Dolenz. The single, produced by Jeff Barry, hit the number-one spot on the U.S. "Billboard" Hot 100 chart for the week ending December 31, 1966, and remained there for seven weeks, becoming the last No. 1 hit of 1966 and the biggest-selling record for all of 1967. "Billboard" ranked the record as the No. 5 song for 1967. Because of 1,051,280 advance orders, it went gold within two days of release. It is one of the fewer than forty all-time singles to have sold more than 10 million physical copies worldwide. While originally published by Screen Gems-Columbia Music (BMI), it is now published by Stonebridge Music/EMI Foray Music (SESAC), with administration passed to Sony/ATV Music Publishing and Universal Music Publishing Group.