Keys played her new single Doesn't Mean Anything
R&B singer Alicia Keys attracted some of Britain's top music stars to the launch of her fourth album, Elements Of Freedom, in London.
Will Young, JLS, Dizzee Rascal and The Saturdays all turned out to hear the singer perform a short, half-hour set.
Keys poked fun at her jet-setting diva image, arriving on stage by saying, "Thank you for welcoming me to London... We're in London, right?"
She went on to play classics If I Ain't Got You and No-one alongside new songs.
Wearing a white jumper dress, splashed with a blue wave pattern, the singer braved the sweltering heat of the tiny concert hall in central London's Aqua club.
Leaving the stage, the 12-time Grammy winner declared she had "had fun" and promised to return in May for a string of concert dates around the UK.
Among the audience was Strictly Come Dancing judge Alesha Dixon, who told the BBC: "Alicia Keys is a goddess and the only person worth sweating or having sore feet for.
"She's the most phenomenal live artist. She's got a great heart, she's a great humanitarian and I just adore her."
Singer and actress Paloma Faith, meanwhile, commented that Keys "looks great from every angle".
The star's album is released in the UK next week.