- When she was 18 years old, she suffered a minor stroke.
- As a child, she was diagnosed with arrhythmia.
- When she was 17, she wrote her first song called "Big White Room". The song was inspired by real life experience.
- Her mother was a nursery school teacher and her father was a social worker.
- Performed in the Closing Ceremonies of the 2012 London Summer Olympics.
- She has two older sisters.
- At age 16, she began studying at the BRIT School. At age 17, she joined a girl group called "Soul Deep".
- Ranked #55 in the 2011 FHM list of "100 Sexiest Women in the World".
- She co wrote Miley Cyrus's song, "Party in the USA".
- She was cast in Andrew Lloyd Webber's West End production "Whistle Down the Wind".
- In 2014, she was diagnosed with infertility.
- She calls her fans, "heartbeats" ever since she went on her Heartbeat Tour.
- She is the youngest of three children.
- Some of her music inspirations include, Lady Gaga, Katy Perry and Pink.
- Born at 9:27 AM (GDT).
- Not to be confused with American female saxophonist Jessy J (b. Jessica Arellano).
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