David Cameron has revealed he has only voted in a reality TV programme once, when he plumped for Will Young over Gareth Gates in the final of Pop Idol.
"I think I did vote for Will Young once in X Factor" - actually, it was Pop Idol - "because my daughter made me," he told journalists at a lunch in Westminster on Monday.
The only problem with that anecdote? Young won Pop Idol in 2002. Nancy, the prime minister's daughter, was born in 2004.
Let's remember what Nancy Cameron did not watch: