Eminem, Dr. Dre, Mary J. Blige, Kendrick Lamar, Snoop Dogg, Anderson .Paak and 50 Cent all appeared at the LA event
The rapper's upside-down entrance has already inspired a raft of memes
The two rappers will perform together during the Super Bowl Halftime Show this weekend
The new track will supposedly come ahead of Lamar's appearance at the Super Bowl Halftime show
"I can’t believe that they will let a real hip hop artist grace the stage in an NFL Super Bowl"
Dr. Dre, Eminem, Snoop Dogg, Mary J. Blige and Kendrick Lamar make their way to the SoFi Stadium in the clip
Production on the untitled film begins in spring
The next 12 months look set to be <em>massive</em>
Wallen, who was recently banned from the CMA Awards, currently has the Number One rap song in the US
Dre would eventually sign Lamar to Aftermath in 2012