So we raised an eyebrow at popstar Britney Spears' latest choice of X Factor USA auditions outfit last night.
The XF judge opted for a very demure gold long-sleeved beaded dress with a relatively conservative scalloped hemline.
Meanwhile co-panellist Demi Lovato was the one to flash the flesh - in a black cut-out mini dress that showed off her belly.
Singer Demi paired the sexy Topshop outfit with a shaggy multi-tone cardi and skyscraper black peep-toe heels.
She tweeted: "Loving my pink hair and obsessed with my new Topshop outfit and Chloe Green shoes!!!!"
The pair posed together at the San Francisco leg of the new series of X Factor auditions.
Britney grinned lots for the cameras, shrugging off reports that she's been a diva behind the scenes.
And the two girls, who were reported to have been at war off camera, smiled and posed with each other as if they were BFFs.
[Related story: Britney and Demi walk out of X Factor USA auditions?]
[Related story: Britney and Demi at WAR on X Factor USA?]
Simon Cowell has defended Brit, saying she is absolutely NOT too unstable to be an X Factor judge.
He said: "No she's not unstable. I'm the one that's unstable. She's working out great. All these reports that we've fallen out are nonsense. She's doing a great job."