Celebrity Age Wars: Tara vs. Angelina

She's known for her wild partying, man-eating ways and a string of accidental public flashing incidents that would put Lindsay Lohan to shame, but who would have guessed Tara Reid is nearly 33 years old?

Yep, the American Pie star is the same age as serial mum and UNICEF ambassador Angelina Jolie. All's not lost for Tara though – remember when Angie was running round with Billy Bob and wearing a vial of his blood around her neck?

Take a look below for more stars you'd never guess were the same age.

Beyonce vs. Paris

Megan vs. Amanda

They're both 22, but sexy Megan Fox is far more of a woman than Nickelodeon cast-off Amanda Bynes, who seems determined to stick with her sugary image, still appearing in a string of teenage movies despite her grown-up age.

Courtney vs. Nicolette

With her cougar-ish looks, Nicolette Sheridan looks every one of her 44 years, but it's not surprising her Desperate Housewives character gets all the men. She still looks hot! It's a stark contrast to raven-haired Courtney Cox, also 44, whose bright eyes and smooth skin give her the look of someone years younger... and distinctly less exciting.

Can you guess who is older? Test your celeb age radar below.