Crazy

Constructed by producer Danger Mouse around a looped sample from the 1968 spaghetti western soundtrack 'Nel cimitero di Tucson' by Gian Franco Reverberi, 'Crazy' became a colossal international smash. CeeLo Green's soaring, pained vocal performance explores themes of mental instability and artistic obsession. The song fundamentally altered chart history by becoming the first track to reach number one in the UK based entirely on digital download sales.