Celebrities Who Are Actually Insufferable Behind the Scenes

Carrie Underwood

Carrie Underwood is best known for winning American Idol back in 2005, which jump-started her career as a country superstar. Unfortunately, her sweetness might just be for show... Underwood has admitted that she can be quite selfish from time to time. She sometimes finds herself regretting not thanking people, or feeling bad about telling presenters not to goof up her entrance on television. At least she's aware of it, but the next step is actually improving as a person.

The More You Know

Angelina Jolie performed her own stunts whilst filming Lara Croft: Tomb Raider.
Jonah Hill had to go to the hospital for bronchitis while filming Wolf of Wall Street. For seven months, he was snorting vitamin D (almost) daily, pretending it was cocaine.
One of David Bowie's eyes was permanently dilated.
Jennifer Lawrence has an "H2O" tattoo to remind her to drink more water.

Post originally appeared on Upbeat News.