Keisha Kerreece Fayeanne Buchanan (born 30 September 1984) is an English singer and songwriter and was a founding member of the BRIT Award-winning girl group the Sugababes alongside Mutya Buena and Siobhan Donaghy.
With the Sugababes, Buchanan had six number one singles and two number one studio albums, making the Sugababes one of the most successful British pop acts of the 21st century.
Buchanan was asked to leave the group in September 2009 and was replaced by Jade Ewen.
In October 2019, Buchanan returned to the group alongside the other two original members.
On 20 July 2012, Buchanan and her former Sugababes colleagues, Buena and Donaghy confirmed their reunion.
The original trio was not able to release music under the name "Sugababes" as it was still being used by the then-current members of the group.
Instead they released music under the new name, Mutya Keisha Siobhan before securing the legal rights to the Sugababes name in 2019.