Celebs Now and Then

Some of them aged... Can't believe how fast time flies.

Britney Spears

She's so gorgeous then. But still pretty.

Alicia Silverstone

She didn't change a bit! (Okay, she did. A little.)

Christina Aguilera

She changes quite a lot. After all those work done and going through motherhood.

Cindy Crawford

Careful, she might be a vampire.

                        

Jennifer Aniston

Actually, I want to believe that she's all natural. But her nose significantly got thinner throughout the years.

Olsen Twins

They're a grown women.

Pamela Anderson

She's so pretty then.

Source: More photos here.