Courtney Mazza
The newlyweds welcome their daughter Gia back in 2010 before getting engaged over New Years weekend in 2012 during a trip to Mexico.
Karina Smirnoff
The super hot couple began dating in 2006 after dancing together on the third season of Dancing With the Stars, but broke up after two years together.
Ali Landry
Lopez and Landry were married in April 2004, but the union was annulled just two weeks later due to alleged infidelities committed by Lopez.
Jaime Pressly
The two actors costarred in the 1997 straight-to-video flick, The Journey: Absolution, and it's rumored their onscreen chemistry translated into a real-life romance.
Tiffani Thiessen
The Saved by the Bell pals dated on and off for several years during the course of their show, according to costar Dustin Diamond.
Fergie
Believe it or not, the Black Eyed Peas frontwoman was Lopez's first kiss when the two were both on Kids Incorporated back in the '80s. "It's a true story. I'm very proud of my first kiss," he told People. "She says there was no tongue!"