What singer born in London in 1988 joined The Voice as a new judge in 2015?
Jessie J Jessica Ellen Cornish (born 27 March 1988), known professionally as Jessie J, is an English singer and songwriter. Born and raised in London, she began her career on stage, aged 11, with a role in the West End musical "Whistle Down the Wind". She studied at the BRIT School before signing with Gut Records and striking a songwriting deal with Sony/ATV Music Publishing.
Leona Lewis Leona Louise Lewis (born 3 April 1985) is a British singer, songwriter and animal welfare campaigner. She was born and raised in the London Borough of Islington, London, where she attended the BRIT School for Performing Arts and Technology. Lewis achieved national recognition when she won the third series of "The X Factor" in 2006, winning a £1 million recording contract with Simon Cowell's record label, Syco Music. Her winner's single, a cover of Kelly Clarkson's "A Moment Like This", peaked at number one for four weeks on the UK Singles Chart and it broke a world record for having 50,000 digital downloads within 30 minutes. In February 2007, Lewis signed a five-album contract in the United States with Clive Davis's record label, J Records.