On Saturday, December 2, Pitchfork celebrates 21 years with a sold-out concert at the Knockdown Center in Maspeth, N.Y. Today, we are pleased to announce that (Sandy) Alex G, Moses Sumney, and Topaz Jones have been added to the lineup for Pitchfork’s 21st. They join Animal Collective (Avey Tare and Panda Bear) who will perform their classic album Sung Tongs in its entirety for the first time ever. Plus, AnCo’s Geologist and Deakin will open the night with a DJ set from 7:30-9 p.m.

Pitchfork’s 21st highlights some of the artists who have been important in the history of the site and continue to influence the scope of music. Each performer, at some point over the last 21 years, has been named to the site’s “Best New Music” list.

Pitchfork’s 21st is presented by Virgin Mobile USA. The wireless carrier recently launched its Member Benefits program, which provides members with exclusive offers, chances at VIP access and one-of-a-kind experiences the minute they join the Inner Circle. One hundred lucky members won VIP tickets to Pitchfork’s 21st courtesy of Virgin Mobile. Pitchfork is also giving away two tickets to the sold-out event. Find more information here.

In addition to the concert, ASICS will be hosting a curated collection of Pitchfork’s top albums from the past 21 years and unique lounge experience. Attendees will enjoy beers from long-time Pitchfork partner Goose Island Beer Company.