Initially, it is a soft, foul-smelling matter that floats on the ocean but through exposure to the sun and the salt water over years it turns into a smooth lump of compact rock which feels waxy and has a sweet smell.

BBC: Rare whale vomit found on Morecambe beach

Since then, Barzelay has released a solo acoustic record (2006's Bitter Honey), recorded Clem Snide's swan song (the still-unreleased Hungry Bird), and made Lose Big, a smart and compact collection of rock 'n' roll conversation-starters.

NPR: Eef Barzelay: A Blueprint For Finding Love