As the song suggests, Ashanti feels that she still loves her ex and that she just can't seem to get over him and becomes frusturated since her heart and her mind force her to love him and hate him at the same time. The video shows the viewer a relationship where a man, played by Terrence Howard, gets involved into some criminal acts after telling his girlfriend that he is in construction and is unfaithful to Ashanti with Love & Hip Hop: Atlanta reality star Althea, which ends up in a break-up after some quarrel. The filming session of the video for the single took place during January 2002.

It would later get ranked the second best performing single of 2002, and listed as the 132nd best single. 'Foolish' spent 10 consecutive weeks at number one on the Billboard charts and a total of 17 weeks in the top 10. It follows a chord progression of F maj7–G, and Ashanti's vocals span from A 3 to C 6. The song is performed in the key of C major in common time with a tempo of 89 beats per minute. In 2009, Billboard ranked it 19th on its Hot 100 Songs of the 2000s Decade. The song was nominated for Best Female R&B Vocal Performance at the 2003 Grammy Awards, and won the Soul Train Music Award for Best R&B/Soul Single – Female. Elsewhere, 'Foolish' became a top ten hit in the United Kingdom, Australia, New Zealand and Canada. It spent ten weeks at number one on the US Billboard Hot 100 and on the Hot R&B/Hip-Hop Songs chart, becoming Ashanti's second number one and third top ten on both charts. The song was released as the album's lead single on February 11, 2002.

A promotional version of the single called 'Unfoolish' features a verse from Notorious B.I.G. Due to the inclusion of the sample, Mark DeBarge and Etterlene Jordan are also credited as songwriters. The song uses a sample of DeBarge's ' Stay with Me' and features elements from the remix of ' One More Chance' by The Notorious B.I.G. It was written by Ashanti, 7 Aurelius, Etterlene Jordan, Mark DeBarge and Irv Gotti, while production was overseen by Gotti. It served as her debut single, the first from her self-titled debut album (2002). ' Foolish' is a song by American singer-songwriter Ashanti.

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