PHOTOS: Miami Heat & Sheer Disasters In The Best & Worst

It was a fashion-packed Thursday as Hollywood’s hottest stars hit the streets and the red carpet, dressed in the best and worst fashions‹and RadarOnline.com has all the photos.

Cameron Diaz upped the temperature in Miami, hitting the streets with her New York Yankee’s slugger. The big screen babe showed off her luscious legs in skintight pink leggings, adding a stone colored Stella McCartney blazer, crafty sandals and a brown Bottega Veneta bag. Well done, Cam.

She’s 'Every Woman’ and not afraid to show it all off! Chaka Khan hit A Celebration of LA’s Music Industry, showing a little too much skin in a totally sheer Kaftan shirt (wearing only a lace bra under it!) with leather pants.

J-Woww brought her Jersey Girl style to Mercedes-Benz Fashion Week, hitting the runway of the Richie Rich fashion show baring her boobies in a totally sheer shirt.

And Reese Witherspoon was sophisticatedly (and sexily) suited for lunch in Los Angeles, while Ciara rocked a super chic cutout brown dress to the Black Eyed Peas and Friends Peapod Benefit Concert.