 Other notable examples are the Nickelodeon animated series "The Ren and Stimpy Show" and "SpongeBob SquarePants", which use well-known classical music excerpts and a wide range of pre-1960s production music cues—including many pieces familiar from their use in earlier cartoons—which were chosen for their ironic and humorous effect.Production music composers and session performers typically work anonymously and have rarely become known outside their professional circle.In recent years some veteran composer-performers in this field such as Alan Hawkshaw, John Cameron and Keith Mansfield have achieved attention and popularity as a result of a new interest in production music of the 1960s and 1970s, notably the 'beat' and electronica cues recorded for KPM and other labels, which have been widely sampled by DJs and record producers.