She learned operatic singing and jazz singing but settled on pop music. She started writing music when she was twelve years old.
Her single "Bleeding Love" reached #1 in over thirty countries around the world.
She dated electrician Lou Al-chamaa from 2001 until June 2010; when they broke up, she started dating dancer Dennis Jauch.
She won season three of The X Factor, a show created by Simon Cowell.