Nicole Scherzinger rejected "We Found Love" by Rihanna feat. Calvin Harris, "Crazy" by Gnarls Barkley, and during her time on The Pussycat Dolls, rejected "Just Dance" by Lady GaGa
http://www.aceshowbiz.com/news/view/00058141.html
Leona Lewis splits from her management company Modest! in recent months – following Alexandra Burke, Stacey Solomon and Rebecca Ferguson, amidst the failure of her new album
http://www.mirror.co.uk/3am/celebrity-news/leona-lewis-splits-management-company-1710887