Kelly Clarkson performs live in concert at the Beacon Theater. New York City, USA - 14.10.07

The 25-year-old has enjoyed a string of hit songs since winning TV talent competition American Idol in 2002 - but insists she won't be putting out a compilation of her best tracks until later in her career.

She says, "Doing a greatest hits would be crazy. I am not 50. Artists who do one after three albums think their career is coming to an end."

Source: WENN