PHOTOS: Brad and Angelina's Twins Are Growing Up Fast

Angelina and Brad’s twins Vivienne and Knox celebrated their 8th birthday yesterday.

When the twins to the famous parents were born, Brangelina sold their baby photos for a reported $11 million to People magazine.

Besides the twins, Pitt and Jolie also share Maddox, 14, Pax, 12, Zahara, 11, and Shiloh, 10.

Photos: Splash