Kendall and Kylie Jenner strut their stuff on the red carpet looking older than their years

Kendall and Kylie Jenner strut their stuff on the red carpet looking older than their years

Sister Act ready to take over! Kendall and Kylie Jenner strut their stuff on the red carpet looking older than their years

2:10 AM on 8th August 2011

Sister act: Kendall and Kyle Jenner looked older than their years at the premiere for Glee The 3D Concert in Los Angeles last night

Sister act: Kendall and Kyle Jenner looked older than their years at the premiere for Glee The 3D Concert in Los Angeles last night

Growing fast: Kendall, 15, (left) and Kylie, 13, (right) strutted their stuff on the red carpet Growing fast: Kendall, 15, (left) and Kylie, 13, (right) strutted their stuff on the red carpet

Growing fast: Kendall, 15, (left) and Kylie, 13, (right) strutted their stuff on the red carpet

Television divas: The teen girls appear on Keeping Up With The Kardashians

Television divas: The teen girls appear on Keeping Up With The Kardashians

Stealing the spotlight: The Keeping Up With The Kardashians stars grabbed some microphones to do a piece to camera

Stealing the spotlight: The Keeping Up With The Kardashians stars grabbed some microphones to do a piece to camera

Vogue: Kendall is forging a successful modelling career and posed effortlessly for the cameras

Vogue: Kendall is forging a successful modelling career and posed effortlessly for the cameras

Sibling love: Kendall and Kylie are close with their sisters Kim, Khloe and Kourtney Kardashian

Sibling love: Kendall and Kylie are close with their sisters Kim, Khloe and Kourtney Kardashian (pictured in June)

Co-stars: Glee Co-stars: Glee

Co-stars: Glee”s Lea Michele (left) and Dianna Agron (right) also dazzled at the premiere