Jordin Sparks thinks Kelly Clarkson would beat her in a fight.

The 'Battlefield singer' - who won US TV talent show 'American Idol' in 2007, with Kelly triumphing in 2002 - admits she would have no hope if she became involved in an altercation with the 27-year-old singer.

Asked who won win in a tussle between her, Kelly and UK TV talent show 'The X Factor' winner Leona Lewis, Jordin replied: "Leona's really sweet, I can't imagine her trying to fight anybody, she'd be like, 'Oh, it's OK.' I think Kelly could definitely kick some butt, she's from Texas. I would try but then I would feel really bad so it wouldn't count. Kelly would win."

However, the 19-year-old singer insists it would take a lot for her to get involved in a fight as she prefers not to show her feelings in public.

She explained to Sony Ericsson's Pocket TV: "I've always been a really optimistic, glass half full kind of person, but when I get frustrated I don't want to show everyone that I'm frustrated so behind closed doors I will punch whatever I see fit."