'You're my best friend and you don't even know it!' Stars reveal what fans really say to them on the street

You won't believe what people say to Reese Witherspoon in the street... yep, it's pretty creepy.

Vanity Fair got together a bunch of A-listers and asked them what fans come up to them and say in public. It turns out everyone mixes Keira Knightley up with Anne Hathaway!

And which half of a famous Hollywood couple gets told she's "so much prettier in person"? Watch your fave stars tell all above. So that's what it's like living in a fishbowl…

Have you had an awkward/amazing/life-changing encounter with a celeb? Send your stories, photos or videos to spotted@ninemsn.com.au and we'll take a look!

Guess the celebrity from their childhood Insta-snaps!

Author: Adam Bub. Follow on Twitter.