Kirsten O'Brien joins Let's Dance for Sports Relief 2012

Steve Jones and Alex Jones (Let's Dance)

Kids telly presenter Kirsten O'Brien has become the latest celebrity to join Let's Dance for Sport Relief 2012, completing the line up for this weekend's show.

The former SMart host will compete against the likes of Scott Mills & Olly Murs and comic Omid Djalili this Saturday evening for a spot in the live final next month.

Whilst rehearsing for the show, Kirsten said: "I'm leg warmered up for Let's Dance for Sport Relief, having not done any exercise for a year since being pregnant and having my son, so I hope I've got the stamina for a whole 2 minutes!

"I mucked up my wedding dance and that was only a minute long so concentration will be key for me, I've no time to think about the competition although I think Scott and Olly will be a force to be reckoned with!"

Others competing in this weekends show include Tracy Beaker star Dani Harmer and comic Arabella Weir.

Let's Dance 2012 continues on Saturday night, BBC One.

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