Showing off your bra has become the fashion norm by now. If you're interested in achieving the look, let FabTV be your guide. In the meantime, let's focus on the latest sporty ensemble Rihanna wore at the airport in Oahu. Along with a gray blazer and gray pants, she bared her midriff in T Alexander Wang's Racerback Sports Bra ($72). It's definitely a less fancy look than her Madame Tussauds wax figure is wearing — she could very well hit the gym in it. What do you make of Rihanna's latest sporty outfit?