"The Greatest" is a ballad recorded by American singer-songwriter Michelle Williams. It was co-written by Jim Jonsin and Rico Love, and produced by Jim Jonsin for Williams' third studio album Unexpected (2008). The song was released as the album's second single in September 2008. It was listed at number thirty-nine on Billboard's decade-end (2000–2009) Hot Dance Club Songs chart, just behind "Lose My Breath" which Williams recorded as a member of Destiny's Child five years prior.

The song was sent to radio stations on August 25, 2008. The track was also officially released and available to purchase September 9, 2008. The song gained more recognition after being used in the movie Noah's Arc: Jumping The Broom. Michelle performed the song on Fox Light, Jimmy Kimmel Live! and AOL Sessions.

The Greatest is a "pop ballad". Written by Rico Love and James Scheffer (better known as Jim Jonsin) and also produced by Scheffer, it is set in common time and composed at a moderate tempo, featuring additional vocals by Rico Love along with a piano riff and a militant drum loop. The song has a basic sequence of C-G-Am-F as its chord progression. Its lyrical content "details the unnecessary search for a significant other when a perfect candidate is right in front of your face". Williams' vocal range in the song spans almost two octaves from the note G₃ to the note F₅.

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