[Photo: Splash News]
Demi Lovato
Demi Lovato proves that somehow, even strapless dresses aren't safe from the dreaded summer armpit stain.
[Photo: Jen Lowery/Splash News]
Nick Jonas
Nick Jonas greeted his fans a little too excitedly after a performance of Les Miserables, revealing that he was a little sweaty.
[Photo: Splash News]
Kim Kardashian
Kim Kardashian had a bit of an underboob sweat situation as she was stepping out into the Los Angeles heat.
[Photo: Pap Nation/Splash News]
Cameron Diaz
Cameron Diaz was probably not expecting (ha, get it), this sweat stain at the premiere of What To Expect When You're Expecting.
[Photo: Love New York/Splash News]
Minka Kelly
Minka Kelly struggling with that hot weather boob sweat is all of us this summer, honestly.
[Photo: London Entertainment/Splash News]
Adrian Grenier
Apparently even guys get "boob" sweat? This is news to us.
[Photo: Clint Brewer/Splash News]
Halle Berry
Halle Berry was clearly feeling a little too toasty on the red carpet at a Revlon event.
[Photo: Christopher Peterson/Splash News]
Chace Crawford
If the sweat stains are any indication, Chace Crawford was doing some serious dancing during his night out in London.
[Photo: Weir Photos / Splash News]
Elizabeth Canalis
The reason why long sleeves in the heat are never a good idea.
[Photo: London Entertainment/Splash News]
Justin Timberlake
We feel your pain, Justin. We feel you.
[Photo: Janet Mayer/Splash News]
