More than 890,000 trekkers—including David Hyde Pierce, Audra McDonald and Nick Jonas—have participated in this 10K stroll through Central Park and the Upper West Side. The annual jaunt raises awareness and money for more than 40 HIV/AIDS organizations in the tristate area, including the organizer Gay Men’s Health Crisis. (You don’t have to pledge your own fund-raising minimum to join, although it’s recommended.) At 10am, the walk commences at the 72nd St and Fifth Ave entrance, and by noon you’ll have gotten in a little exercise and contributed to a good cause. Don't miss the opening ceremony show at 9:15am, featuring Rosie Perez, Matt Bomer, Selinis Leyva, Michael Urie, Mercedes Ruehl and more; and a banging after party at Rumsey Playfield featuring the Pointer Sisters and some RuPaul's Drag Race divas.