TMZ- Jamie Foxx might as well have been turning 35 this week instead of 50 by how many old-school hip-hop acts he booked for his birthday bash ... talk about memory lane.
Jamie rang in the big 5-0 Wednesday night at Paramount Pictures Studios with a straight-up concert, and he brought out the big guns with guys like Ice Cube, Snoop Dogg, Ludacrisand Too Short.
The bday boy was onstage for most of the performances -- which included Cube's "Gangsta Gangsta," Luda's "Move B***H," and other '90s/2000s hits ... oldies but goodies in 2017.
BTW ... Katie Holmes was there, too!