This is almost sold out, so act fast. With a hilarious lead performance from Andy Samberg, tons of killer cameos including Maya Rudolph, Sarah Silverman, Usher, and Adam Levine’s hologram (so expensive!), and plenty of big laughs & bumpin’ tunez, POPSTAR has established itself as a modern cult classic. That’s why the recently re-opened Alamo Drafthouse inviting you to kick it with the boyz of The Lonely Island at the most baller Sing-Along of all time (#sohumble). They’ll have inflatable microphones and onscreen lyrics so you can get in on the jamz, glow necklaces and ribbon wands to dance along, and an American flag for you to wave around during Conner’s erotic ode to patriotism. And be sure to show up early for the Show Pony drawing contest before the film. DOINK DE DOINK! SAT, 7:15 PM. $15.