 Cypress Hill rehearsing with the London Symphony Orchestra, a collaboration almost 30 years in the making. Come on people, somebody order the London Symphony Orchestra, possibly while high. Cypress Hill, I'm looking in your direction. It was back in 1996 when an episode of The Simpsons called Homerpalooza featured a joke where Cypress Hill believed they had mistakenly booked the LSO whilst under the influence. Oh yeah, yeah, we think we did.