Kathleen "Katie" Brien was born in Peckham, South London. Also known as Katy B, and Baby Katy, she is a Dubstep, R&B, funky, house and UK Garage singer. She was offered major label deals in 2009. She released her first single with the label Rinse in 2010. The same year, she completed a degree in Popular Music at Goldsmiths, University of London.
DJ NG's song "Tell Me," on which she's featured as Baby Katy, was released on a white label and later signed to Ministry of Sound. Katy B has collaborated with Geeneus to cover the Kevin Saunderson produced "Good Life" and the track "As I." She also provides vocals on the track "Hold Me" for The Count & Sinden's debut album Mega Mega Mega and features on Magnetic Man's tracks "Perfect Stranger" and "Crossover."
Geeneus, with whom Katy B collaborated, works for Rinse FM. Following the official recognition of the station in June 2010 (formerly a pirate radio station), Rinse presented Katy B's first single, "Katy On a Mission," which was produced by Benga and was released on 22 August 2010. The single reached number 5 on the UK Singles Chart and number 1 on the UK Indie Chart.
|With Ms. Dynamite|
Her third single "Broken Record" was released in March 2011, and peaked at number 8 in the UK. Her fourth single "Easy Please Me" and her fifth, "Witches Brew" were released in 2011.
Katy's debut album On a Mission was released in April 2011, and reached number 2 on the UK Albums Chart.
Katy B supported Tinie Tempah on his tour during Spring of 2011. In April 2011, Katy embarked on her debut concert tour across Europe.