It's Always Sunny in Silicon Valley

Every so often, the best parties come to represent moments in time. Think of Truman Capote’s Black and White Ball in 1966, the celeb-studded Liberty Island launch of Tina Brown’s ill-fated Talk magazine in 1999, and private equity maven Stephen A. Schwarzman’s 60th birthday bash in 2007, which featured Rod Stewart. Sean Parker’s bacchanal for the streaming music service Spotify on Sept. 22 in San Francisco may well join the ranks of these epic affairs.