The Australian group finally returns with its long-rumored follow-up to Since I Left You, the 2000 album that earned them a ravenous following. Wildflower is a continuous mix of the wild and weird, another hallucinogenic collage of samples ranging from R&B to orchestral pop. From the calypso-klezmer "Frankie Sinatra," featuring Danny Brown, to Biz Markie chomping over a Beatles sample on "Noisy Eater,” it’s the tour de force soundtrack to music's past and present.