Following a high-energy Grammys performance, Jennifer Lopez has some big news to share: she's going on tour this Summer! On the Feb. 13 episode of The Ellen DeGeneres Show, the 49-year-old singer revealed that she'll be hitting the road from June 7 to July 26 in celebration of her 50th birthday, which is on July 24. "I wanted to do something big for my birthday since it is a big birthday," she said. "It's the 'It's My Party' tour! We're gonna celebrate."