Actress-model Kelly Brooks has revealed that Simon Cowell thought she was a singer when she appeared on "Britain's Got Talent" in 2009.

Brooks says Simon Cowell didn't know who she was when she was asked to appear on the reality show as a judge, reports contactmusic.com.

The 34-year-old beauty starred as judge on the show in 2009.

In her new book, which is being serialised in The Sun newspaper, Kelly explained, "Half way through filming he said, 'You're a singer aren't you, Kelly?' 'No,' I replied."