Leona Louise Lewis (born 3 April 1985) is an English pop and R&B singer-songwriter, and the winner of the third series of UK television talent show The X Factor. Her UK debut single, "A Moment Like This", broke a world record after it was downloaded over 50,000 times within 30 minutes.

Her second single, "Bleeding Love", was the biggest-selling single of 2007 in the UK, topped over thirty national singles charts and became a number one single on the first week in France and number one in the United States.

Her debut album, Spirit, was released in Europe in November 2007, and became the fastest-selling debut album ever in both the United Kingdom and Ireland. Released in North America in April 2008, Spirit debuted at number one on the US Billboard 200 chart and made Lewis the first British solo artist to top the chart with a debut album.

With her album reaching number one in at least three continents and nine countries, Lewis has had one of the most successful launches of any television talent show contestant ever.