What is the title of Beyoncé's first solo single?

Beyoncé's first solo single was “Work It Out.”

Released in 2002, the song served as the lead single from the Austin Powers in Goldmember soundtrack. It was written and produced by Beyoncé, Pharrell Williams, and Chad Hugo, and it introduced listeners to her solo identity before the release of her first solo studio album, Dangerously in Love, in 2003.

The track uses a retro-inspired funk and soul sound that matched the period setting and playful style associated with Austin Powers. Beyoncé also appeared in the film as Foxxy Cleopatra, a character created for the movie.

“Work It Out” is sometimes confused with “Crazy in Love,” because the latter was Beyoncé's breakout solo hit and her first US Billboard Hot 100 number-one single. The distinction is important: “Work It Out” came first as her debut solo single, while “Crazy in Love” became the larger chart landmark.