A pair of disk jockeys from the Los Angeles radio station KROQ. Pretty much since the early 1990's until now their show airs in the mornings. They're fairly irreverent and silly.
For a few months in '92 they co-hosted a television show on KTTV channel 11 in Los Angeles on Saturday afternoons that played nothing but Godzilla movies, with them cracking jokes before and after the commercial breaks.
Almost with the same sense of humor found in Mystery Science Theater 3000.
They always wear shorts and t-shirts. Always. It's part of their schtick.