Lopez shimmies and sparkles during a concert in Veracruz, Mexico. Plus: Ben Affleck & Seraphina, Britney & Jason, Mariah Carey and more


We hope Mariah Carey's Brazilian fans like fun! In a cheeky T-shirt, the singer performs Saturday at the annual Rodeo Festival in Barretos, Brazil. "Thank you SO much 2 everybody in Brazil…you always show me love&I am so GRATEFUL!," the gracious star Tweeted.