Walk In Lay Down (commonly referred to as WILD ) is a concert event held in the Brookings Quadrangle at Washington University in St. Louis twice each year since 1973. The concert is named for an old tradition in which students would bring sofas into the quad and lie on them while watching the performances. This tradition is still allowed but is no longer commonplace. In fall 2007 the University attempted to revive this tradition by supplying inflatable couches for use during the concert blank">Student Life - New WILD policies cause mixed reactions . WILD is sponsored by the Washington University Student Union and is produced by the student group Team 31 Productions (Official Site) and is regarded as one of the biggest social events on campus each semester . WILD is free to University students and faculty, and students may purchase tickets for visitors. _Drinking on the day of WILD is very commonplace and students who are over 21 are allowed to bring one six-pack of beer cans to the event . Held at the beginning of the fall semester and the end of the spring semester, WILD generally features several local bands and one or two nationally known recording artists or groups. Recent headliners at WILD include Guster, Ben Folds, and Lil' Jon & the Eastside Boyz.