Jessica Ellen Cornish (born 27 March 1988), better known by her stage name Jessie J, is an English singer and songwriter. She voiced Brooke, a ground sloth in Ice Age: Collision Course. 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 where she wrote for artists including Chris Brown and Miley Cyrus.
After signing with Universal Republic, Jessie J came to prominence following the release of her debut single "Do It Like a Dude". Her next song "Price Tag" topped the charts in nineteen countries including the UK and was followed by the release of her debut album Who You Are (2011), which charted at number two in the UK. Other releases from the album included "Nobody's Perfect", and "Who You Are", "Domino" and "Laserlight", which all charted within the top 10 in the UK Singles Chart, making Jessie J the first British female artist to have six top ten singles from a studio album. "Domino" also resulted in further international chart success, peaking at number six on the US Billboard Hot 100 and becoming her second number-one single in the UK. In 2012 Jessie J performed at the Queen's Diamond Jubilee Concert outside Buckingham Palace in June, as well as the closing ceremony of the 2012 Olympic Games in London on 12 August.