Who Was A Hotter Mess At Cannes?

On the one hand you've got Mariah - who always dresses so elegant and classy, wearing sunglasses at night. But that dress... I dunno if it shows off her best assets!

And then there's Tara. The once-promising young Hollywood actress turned party-too-hardy socialite. A better question might be, do either of them really belong at the prestigious Cannes Film Festival???