Britney and Justin Perform at Madonna Concert

Britney Spears and Justin Timberlake both performed at Madonna's concert at Dodger Stadium, but their appearances were not together.

Unfortunately for those who were clamoring to see the ex-couple together on stage, Spears and Timberlake took the stage separately.

Yet, according to the Associated Press, some of Hollywood's biggest stars made appearances, "Elizabeth Banks, Drew Barrymore, Jennifer Lopez . . . were among those in the first few rows."

Rumors have been swirling about Spears's possible appearance at the Los Angeles stop of Madonna's Sticky and Sweet world tour.

According to USA Today, "Spears, whose new album Circus debuts December 2, sang a few backup vocals with her idol, then as the stage she was standing on started sinking, Spears gave a hip-gyrating booty shake that sent the crowd into a fit of screams. Spears and Madonna famously shared a steamy kiss on stage at the 2003 MTV Video Music Awards."

Even though Spears and Timberlake didn't come out on stage together, according to People.com, ". . . the two actually crossed paths during rehearsal. Timberlake was first, and then Spears came on stage to run through her part. 'They said "hi" to each other. Justin was very cool,' a source says." People.com also added, "Spears also lingered and watched Timberlake's entire sound check from the first few rows of the stands."