WATCH: we look at Blake Lively’s first audition tape for Gossip Girl

It's hard to remember a time before Blake Lively took on the role of Serena van der Woodsen in Gossip Girl; the role in which Blake shot to super stardom. 

But what was it about Blake that won her the part? Well, we have the video that everyone's talking about – her audition tape – and along with her beautiful looks, it's not hard to see why she was cast. 

Have a look at a much younger Ms Lively here and then co-star Ed Westwick's audition for Chuck Bass. You know you want to, XOXO, SHEmazing.