Kendall and Kylie Jenner: See Their Stylish Evolution (PHOTOS)
Kendall and Kylie Jenner are growing into young women before our very eyes.
When Keeping Up With the Kardashians debuted on E! in 2007, Kendall was only 11 and Kylie was 9. Now, at 16 and 14, respectively, they're not only gorgeous -- they've got the magazine covers to prove it -- but they're kindhearted as well.
For example, at Kendall's sweet 16 last November, all gifts were donated to a children's hospital.
To honor the terrific twosome, Celebuzz has compiled a gallery of old school -- and new -- photos of them.
Click through the gallery to see how Kendall and Kylie have changed over the years.