J.Lo at 40: How a Diva Was Made!

In 40 photos, see how the birthday girl (on July 24) went from Jenny from the Block to superstar


Naming her twins Emme and Max, Lopez and Anthony welcome the twosome on Feb. 22, 2008. The twins are a month old when they make their debut on the cover of PEOPLE. "I knew I'd be protective. I knew I'd love them intensely and passionately," Lopez tells PEOPLE.