Keisha Kerreece Fayeanne Buchanan is a British singer and songwriter and a founding member of the girl group Sugababes alongside Mutya Buena and Siobhán Donaghy. With Sugababes, she has had six number-one singles and two number-one studio albums, making them one of the most successful-charting British pop acts of the 21st century so far. Buchanan was sacked from the group in September 2009 and replaced by Jade Ewen. Buchanan returned to the group in 2012 with the original line-up.