Super-selling LA sextet Maroon 5 don't care about kudos – they care about taking advantage of romantic stereotypes and planting their unavoidable earworms. This fifth studio album is a gaudy chunk of over-produced electro-pop-rock with vocals by People magazine's "sexiest man alive", Adam Levine, who delivers his Sting-like croon with heady sentiment and some halfhearted swearwords. It verges on creepy at times – a mawkish cover of Marcy Playground's Sex and Candy neatly summarises the band's sugary and desperate audience seduction – but flips a smug V-sign at us, knowing we'll never free its singles from our skulls.