Who do you think it’s hotter? Blake Lively, star of the Gossip Girl or Ashley Tisdale, High School Musical star? Blake, who’s turning 21 on August 25th, she stars in the TV series Gossip Girl as the main character, Serena van der Woodsen.

more photos after the jump…

Ashley Tisdale, the High School Musical star who turned 23 on July 2nd. Who do you think is hotter? They are both blonde. Blake is tall, she’s 5 feet 10 and Ashley is petite, she’s only 5 feet 3.