The Rams' Super Bowl win was P* -- the champions had a rager for the ages after beating the Bengals on Sunday ... with special guest Gunna!!
TMZ Sports has learned ... the Rams took their celebration from SoFi Stadium to Advanced Air in Hawthorne shortly after the game ... and brought out the "Pushin P" MC to provide the entertainment.
We're told there were 5 open bars for the special event ... as well as tacos, chicken, burgers and hot dogs on a stick.
Rams owner Stan Kroenke and head coach Sean McVay also took to the stage to hype up the crowd .