Born on October 27, 1984, in Westminster, London, Kelly Osbourne grew up as the middle child of heavy metal icon Ozzy Osbourne and Sharon Osbourne. Her nomadic upbringing — constantly moving between the UK and the US during her father’s touring years — shaped her resilient, outspoken personality. She attended several private schools in England, including Pipers Corner School, before dropping out of school in the 10th grade after her family settled in Beverly Hills.

She shot to fame at 17 when The Osbournes became a cultural phenomenon on MTV, winning an Emmy in its first year. She parlayed that fame into a music career, scoring a UK number-one duet with her father on “Changes” (2003) and topping the Billboard dance charts with “One Word” (2005). On television, she co-hosted E!’s Fashion Police from 2010 to 2015 alongside Joan Rivers. Additionally, she has appeared as a judge on Project Runway Junior and Australia’s Got Talent. She currently hosts Lego Masters Jr. on Fox (2025).

On a personal note, Osbourne has been candid about her long battle with painkiller addiction. She shares a son, Sidney (born November 2022), with Slipknot DJ Sid Wilson. The couple ended their engagement in March 2026.