Rob, Kristen and Taylor in the Glamour: Child Stars All Grown Up...

Awkward, gangly and in need of a Hollywood polish, R-Patz BT (Before Twilight) was yet to secure his place upon a million teen’s bedroom walls (and the GLAMOUR.COM office walls, for that matter).

Now we’re talking! A well-cut suit, a little hair gel, a spot of manly stubble…be still our beating hearts.

A 12-year-old K-Stew makes her red carpet debut at the premiere of her first major motion picture, Panic Room. And bizarrely, the starlet looks less awkward and uncomfortable here!

Now a fully-fledged Hollywood goddess and style icon, 20-year-old Kristen flaunts the enviable bod and legs a’ heaven that supposedly bagged her GLAMOUR.COM’s reigning Sexiest Man Robert Pattinson. Jealous, us?

Before Jacob, there was ’Sharkboy’. A ten-year-old Taylor attends his first LA premiere for breakout role in The Adventures Of Sharkboy And Lavagirl in 3-D - and shows off the martial arts moves and irresistibly cute good looks that caused Rolling Stone to dub him "the popular kid, jock, or bully in any movie." No mention of ‘werewolf’ mind…

Now 18 (and therefore, it’s OK to fancy him), a shirt-shy Taylor is better known for his impressive physique and brooding good looks.

Dakota Fanning, 2001
Awwww! How china doll-like is a seven-year-old Dakota? The teeny star hit the red carpet for the first time following her role in drama I Am Sam. The film made Dakota the youngest person ever to be nominated for a Screen Actors Guild Award. She also won the Best Young Actor/Actress award from the Broadcast Film Critics Association for her performance. Impressive, no?

Dakota Fanning (nearly) 2010
She’s still only 16, but Dakota has notched up a whopping 20 movies - including The Runaways and The Twilight Saga. What’s more, we’re totally jealous of this teen’s wardrobe!