Lookout! Records was an independent record label, initially based in Laytonville, California and later in Berkeley, focusing on punk rock. Established in 1987, the label is best known for having released the seminal album of Operation Ivy and the first two albums by platinum-selling punk artists Green Day and for having pioneered the American punk sound of the 1990s.
Following the departure of co-founder Larry Livermore in 1997, new ownership took the company in new sonic directions from its trademark "East Bay sound" but proved unable to match the label's early success. In 2005 the label ran into financial difficulties after several high profile artists rescinded the rights to their Lookout! Records material. After a period of rapid contraction the label slowly expired, terminating operations and removing its music from online distribution channels early in 2012.