"I'm a Believer" is a popular song by the band The Monkees, released in 1966. Written by Neil Diamond, the song became a major hit, reaching number one on the Billboard Hot 100 chart. Its catchy melody and upbeat lyrics express the joy of newfound love and the transformation it brings to one's outlook on life. The song has been covered by various artists and featured in numerous films and television shows, solidifying its place in pop culture. Its themes of love and optimism resonate with many, making it a timeless classic that continues to be enjoyed by audiences today.