"Mesmerized" is a song by American R&B recording artist Faith Evans from her fourth studio album The First Lady (2005). Inspired by producer Chucky Thompson's original track, which contains interpolations from Johnnie Taylor's 1968 single “Who's Making Love”, written by Homer Banks, Don Davis, Bettye Crutcher, and Raymond Jackson, and George Benson's “Footin’ It”, crafted by Benson and Donald Sebesky, Evans wrote the song alongside Andre Johnson, Kameelah Williams, Thompson, and husband Todd Russaw; its production was handled by Johnson, Thompson and Russaw. A throw-back to 1960s music, the uptempo funk song exhibits style similar to that of Lyn Collins, Aretha Franklin and James Brown, among others.

The musical composition of the song, as well as Evans' vocals and versatility, positively surprised critics, who ranked it among the album's standout tracks. Released as the album's second single following "Again", "Mesmerized" reached the top twenty in the Netherlands, and peaked at number 22 on the Flemish Ultratop 50, where it became Evans' highest-charting single as a solo artist. A prominent remix of the song, produced by English dance duo Freemasons, also reached number one on the US Hot Dance Club Songs chart and remained atop for three consecutive weeks. The song was also promoted by a Bryan Barber-directed music video which features Evans performing with her band in front of a light wall.

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