According the Tyrese the incident left Robinson "barely walking" with "7 stitches in her head."
Inflamed by the lewd act, the 'Open Invitation" singer went to Twitter to ask for help: "AtL these lame ass dudes hit them... Ditched their car and jumped into another car and drove off ... I need your help Atlanta."
Earlier that night, Leon Timbo was the opening performer at "A Night of Scholarship" hosted by Shaquille O'Neal, which also featured performance from Tank and Avery Sunshine at the Atlanta Civic Center.
No statement has been released on the suspects that cause the accident and fled the scene.