American singer-songwriter Jordan Sparks showed off her pearly whites (all 28 of ‘em!) outside the Radio One live lounge in London today (October 13) following a morning interview.

During her sit-down chat, the American Idol champ revealed that she once did something very naughty — she stole Simon Cowell’s car for a free ride home!

Jordin says the last time she was in the UK, she hitched a ride in the music mogul’s luxury motor so she didn’t have to pay for a taxi.

When asked if she had seen Simon since she arrived in London, Miss Sparks replied: “No not since I’ve been here. I actually don’t have his number so I don’t really call him up when I come over here and if we run into each other, that’s OK. Actually, the last time I was here I did ride in his car though, he wasn’t in it but it was awesome. I don’t remember how that really worked out, but we were leaving dinner and there was a car sitting out there and it was Simon’s driver. I was like: ‘This is awesome!’ So he was talking to me about Simon and everything and I was like: ‘Does he sit back here?’ And he was like: ‘Yes, I’m a little uncomfortable’.”