Talk about a blast from the past -- we got Nicole Richie rapping early 2000s Dr. Dre alongside her hubby, Joel Madden ... and killin' it too.
Lionel Richie's eldest kid hit up the Retro Room in Palm Springs Friday night with the Good Charlotte singer and a handful of pals, where we're told they sat down and had themselves some drinks ... staying for about two hours total. It wasn't just wining and dining the couple did, though -- a little karaoke got thrown in the mix too.
Nicole - Lead
They opted to perform together ... with Nicole taking the lead, and...