On Thursday, Lady Gaga had to cancel a concert because she was suffering from exhaustion and dehydration. This was sad news for Gaga and her fans.

Fortunately, she was able to make her Oprah Winfrey Show debut the following day, rocking a spiky hairdo with glasses (that Oprah herself copied) ...

Posted in: Oprah Winfrey

On 90210, AnnaLynne McCord plays the bitchy character of Naomi.

But the actress seems perfectly nice in real life - or at least we hope that's the case because we're about to get brutally honest with the rising star:

Blondes may have more fun, but according to Nicole Richie, brunettes have more I.Q. points. At least that's what she joked on Twitter this weekend.

Nicole debuted her new darker locks at Costa Mesa's Bloomingdale's, where she was promoting her House of Harlow 1960 holiday jewelry collection.

Posted in: Nicole Richie

Everyone wants Blake Lively's hair. Whether she's dressed up and looking line a million bucks, or dressed down and looking like she just got out of bed, those long, blonde locks look fabulous either way. Now that's a good head of hair!

While her character on Gossip Girl, Serena van der Woodsen, is more likely to choose a glamorous hairstyle (and cleavage-baring dress) everywhere she goes in New York, real-life Blake, a SoCal girl, often opts for an unbrushed, messy look.

Posted in: Blake Lively