Fifteen years after his death, a hologram version of Tupac capped off Coachella's first weekend, joining Snoop Dogg for "2 of Americaz Most Wanted" in a set that included Dr. Dre, Eminem, 50 Cent, and Wiz Khalifa. Though Tupac "was the least dynamic of the parade of rappers young and old who held the mike," according to the Los Angeles Times, his appearance begs the question: Who's next?