Chris Martin & Conan O'Brien Sing Coldplay's 'Yellow' in Awful Cockney Accents: Watch

Conan O'Brien is a bit famous for his awful Cockney accent that he occasionally whips out on his TBS talk show, and last night it joined Chris Martin for a duet...chimney-sweep style.

Watch above as the singer and comedian deliver a Cockney-inspired take of the Coldplay classic "Yellow," ended with Conan yelling, "'Ello, gov'na!"