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.
Kelly Osbourne Kelly Lee Osbourne (born 27 October 1984) is a British singer-songwriter, actress, television presenter and fashion designer. The daughter of Ozzy and Sharon Osbourne, she is known for her appearances on "The Osbournes" with her family, for which they won a 2002 Emmy Award for Outstanding Reality Program, as well as on E!'s "Fashion Police", where she was a presenter from 2010 to 2015. She has also appeared on "Dancing with the Stars", in which she and her professional dance partner Louis van Amstel took third place. She is the voice of Hildy Gloom in the Disney XD animated series "The 7D". She is also a judge on both "Australia's Got Talent" and "Project Runway Junior".