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

THAT DRESS!

"It didn't seem that out there to me," Lopez says of the now-infamous Versace dress, which she wore to the 2000 Grammy Awards. "It was a good-looking dress. It wasn't as open as it looked on TV. I had no idea it was going to be such a big deal." It was – and South Park creator Trey Parker spoofed Lopez a few years later, arriving at the Oscars in a knockoff of her iconic gown.