Purple OnionAuthor: Les Claypool Frog Brigade, The Release Date: 25 02 2003 Details: Amazon. ca One year after erstwhile Primus leader Les Claypool reemerged as the leader of the jammy Les Claypool's Flying Frog Brigade, the bass wrangler throws another curve. With Purple Onion, Claypool reigns in much of the free floating improvisation of FFB's initial releases in favor of something more akin to a proper Primus album, complete with bizarre comic voices,