No guest singer collaborated with Beyoncé on the 2003 song “Me, Myself and I.”
“Me, Myself and I” is a solo Beyoncé recording from her debut album, Dangerously in Love. The song was written by Beyoncé, Scott Storch, and Robert Waller, with Storch producing it. Its lyrics describe independence after a relationship ends and emphasize self-reliance rather than a featured vocal partnership.
The single was released in October 2003 as the album’s third single. It reached number four on the Billboard Hot 100 and became another major early success in Beyoncé’s solo career.
This question can be confused with “Crazy in Love,” the album’s lead single, which does feature Jay-Z, or with “’03 Bonnie & Clyde,” a Beyoncé and Jay-Z collaboration released in 2002. “Me, Myself and I” is credited as a Beyoncé solo performance.