2Pac & Snoop Dogg, "Hail Mary" and "2 of Amerikaz Most Wanted" ("Live" at Coachella 2012)

If you have been living on the bright side of a cave the last few days, you've likely already seen this (or at least heard about it).  Still, it deserves its own Tuna Day.  How far we've come since Leia's plaintive cry for help.