2 of Amerikaz Most Wanted

"2 of Amerikaz Most Wanted" (sometimes called "Gangsta Party") is the second single from American rapper 2Pac's fifth studio album "All Eyez on Me". The song was a duet sung by 2Pac and Snoop Dogg. It was released as a promotional single and was written by 2Pac, Snoop Dogg and Daz Dillinger. 
It is sometimes referred to as "Gangsta Party" because of the line "ain't nuthin but a gangsta party" in the chorus. The song was also featured on 2Pac's "Greatest Hits" in 1998 and a remix of the song was featured on the album "Nu-Mixx Klazzics" in 2003. 
On April 15, 2012, the song was played at the Coachella Festival with Snoop Dogg performing a duet with a virtual version of 2Pac.