Are you ready to feel old? On this 'Back in the Friday' one of the biggest names from the 90's is celebrating a birthday. Beverly Hills 90210 actor, Jason Priestley a.k.a. Brandon Walsh is 46 years old. He was only 25 when the television series hit big!

Everyone was watching some 90210 back in the day...the question is, ladies, were you a Dylan or Brandon fan? I was Dylan all the way, ladies love 'bad boys' right? But Brandon's eyes, wow! lol Check out some memorable Beverly Hills 90210 moments: