It's the pop meltdown to end all pop meltdowns. After her first three albums – 2007's Spirit, 2010's Essence and 2014's Aromatherapy: The Album - sold more than 100 million copies worldwide, Leona Lewis suddenly transformed from an elegant, well-mannered Islington girl to a crotch-thrusting, first-pumping, Timberlake-humping megalomaniac. Her 50-strong entourage? Handed their P45s. Simon Cowell? Denounced as a "no good mofo son of a gun b**tard". The GMTV audience? Treated to a parade of Anglo Saxon expletives while Dame Fiona Phillips-Castle looked on in horror.

Lewis' musical tastes have changed a bit too. Eschewing the winsome balladry that's nabbed her 18 number one hits over the last decade, she's returned to her "street roots" by hooking up with Kanye West, the fallen hip-hop king she befriended while recording her Grammy-winning debut album. 'Dirty Ghetto Sl*t Hussie', the lead single from her upcoming Liberation of Leona LP, is a blistering statement of intent from the wanton warbler. "I'm the X Factor pariah, bought bigger t*ts than Mariah" she hisses over West's old skool, state-of-the-art-circa-2007 beats. "I'm frontin' I'm leadin', honey my love ain't bleedin'." Let's hope The Priory still has space for Christmas, eh?