Has Kym Marsh given away Celeb Big Bro secret?

Coronation Street star Kym Marsh has landed in trouble after dropping heavy hints that she will be appearing in Celebrity Big Brother.

According to the Sun, the actress let slip her plans on her Twitter page, saying, "Finished Corrie for a couple of weeks, now off to get myself a 'reality' check."

However the comment was removed a few minutes later, with Marsh saying, "Just been told off! Feel like I had been sent to the head masters office!"

And she continued to hint that she would be taking part in the latest series of the reality show, saying "I'm not doing anything on New Year's Eve as I cannot risk having a hangover, as I have a busy couple of days after!"

"Lets just say 2010 is going to be a BIG year right from the start."

Later she added, "Thinks it might be a good thing, I wont be near my phone or laptop for a couple of weeks next month!"

Marsh's agent denied she was appearing on the show, which begins on January 3.

Rap star MC Hammer, pop star Dane Bowers, US actress Pamela Anderson and former Dynasty actress Stephanie Beacham are among those rumoured to be taking part.