British singer Ed Sheeran had a worldwide hit with his song "The A Team," about a girl who descends into crack use and streetwalking (the song's title alludes to crack's categorization as a "class A drug"). The song is up for a 2013 Grammy Award for Song of the Year, and has won numerous awards. Sheeran himself appears in a cameo (at 1:20) in this video which was shot in stark black and white in and around London.