Weekend Fashion Roundup: Hot Performances, Hot Outfits

Wowza! The ladies brought it this weekend! Everyone from Mariah Carey to Rihanna had a performance and they all shut it down style wise. While M rocked a white embellished gown, both Rih and Rita Ora opted for sexy, skin-baring looks. Check out what everyone wore to decide who won this best-dressed battle!

JLo is just so major it's not fair. Here she is at Barclaycard Presents British Summer Time Hyde Park on Day 6 in a fringy bodysuit and bedazzled cane.

Nothing says rock star like Ke$ha's colorful bodysuit and knee-high boots.

Clearly, Mariah bejewels everything—right down to her sling. She performed at the MLB All Star Charity Concert with the New York Philharmonic to Benefit Sandy Relief.

Rihanna rocked a black and yellow shirt-dress performing at day 2 of "T In The Park" in the UK.

Also seen embracing the mismatched denim trend was Rita Ora at day 3 of the "T in the Park." The singer flaunted her sick abs in a white bra and leather-meets-denim pants.