This weekend's 20th-anniversary blowout for mega-indie label Sub Pop includes a lot of great shows, but today's lineup is arguably the best, with reunions from Scottish twee punks the Vaselines and Canadian indie hermits Eric's Trip, as well as sets from rising Seattle stars Fleet Foxes, awesome Allentown ranters Pissed Jeans, New Zealand's adorable Flight of the Conchords, and many more acts from the label's stacked, storied roster. All in the legendary birthplace of "grunge™": Redmond, Washington. (Marymoor Park, 6046 W Lake Sammamish Pkwy NE, Redmond, www.subpop.com. Noon, $35, all ages.)