As subtlety in popular music becomes increasingly worshipped by heritage-led taste arbiters, we should relish proper shouty moron tunes. Few come more shouty and moronic than LMFAO, a Los Angeles duo named after the text abbreviation for "Laughing my fucking arse off". They comprise Berry Gordy's youngest son Skyler (AKA Skyblu) and his grandson Stefan Gordy (AKA Redfoo), renowned for goon club anthem "I'm in Miami, Bitch". They claim their second album is "more refined" - but it isn't unless your idea of refined is pole dancing to Limp Bizkit.