Laying out in the spring sun, the former "American Idol" judge snapped a sexy selfie showing off her white bikini top and aviator sunglasses.
"Happy sunny day!!" the 46-year-old captioned the sultry shot. "Are you guys ready for #aintyourmama video!!??"
Four hours later, Lopez made good on her tease when she shared a sneak peek at the music video for her song "Ain't Your Mama" with a vintage-looking, sepia-toned behind-the-scenes clip.
The video, which premieres Friday on Vevo, appears to feature Lopez dressed up like a 1950s housewife, complete with a voluminous,"Stepford Wives"-esque 'do.
The look is remarkably more retro than the super-revealing, brightly colored ensemble she rocked while debuting "Ain't Your Mama" during the American Idol finale.