Osker was an American Los Angeles melodic punk rock band, who formed in 1998 and split in February 2002, ultimately due to the departure of their drummer. The line up originally consisted of Devon Williams on vocals and guitar, Dave Benitez on bass, and Kevin Campell on drums, who would be later replaced by Phil Drazik after getting signed by Epitaph but before recording Treatment 5.
Osker broke away from the typical SoCal punk band with the release of their second CD Idle Will Kill. Previous to this was their first full length album Treatment 5. Both contained cynical and snotty lyrics about teen angst. As a consequence to their stage antics, among which was Devon's brutal sincerity, criticizing conformity in the punk scene and "fashion", as well as their crowd-taunting habit, Osker were labelled as one of the most hated, mean acts on Epitaph.
They released two albums, Treatment 5 and Idle Will Kill. After the split, Williams announced they had been working on a new album (tentatively titled Thriller), however it was later said by Benitez to be a joke.