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


Although fans initially decry the casting of a Puerto Rican actress as slain Mexican singer Selena in the 1997 biopic, Selena's father, Abraham Quintanilla, supports Lopez's portrayal of his daughter. Comedian Paul Rodriguez, a Quintanilla family friend, tells PEOPLE, "Looking at Jennifer, you could swear that the killing was all just a bad nightmare."