Rihanna Cleans Up at iHeartRadio Music Awards, Wears See-Through Lace Dress

Rihanna's Topless
The singer bares her nipples for Lui magazine.
Rihanna was the big winner at last night’s first ever iHeartRadio Music Awards, which was broadcast live over 150 radio stations throughout the country. The 26-year-old singer took home four awards, including artist of the year and song of the year for “Stay.”

Riri, who donned a see-through Givenchy Couture by Riccardo Tisci dress and Manolo Blahnik heels, capped her look with a dark green metallic lipstick and a wacky 1990s ‘do reminiscent of Lisa “Left Eye” Lopez.

Rihanna, who also won the award for Best Fan Army, said “It’s not easy what we do. It’s very difficult at times. It’s a lot of pressure to be a lot of things, and I’ve never felt comfortable being anything other than myself — and I just thank my fans for being supportive.”

Although the “Rude Boy” singer was as gracious as could be in accepting her awards, she could have exercised a bit more self-control as an audience member. Watch her reaction to Ariana Grande’s performance of “Problem.”

Other performers at the iHeart Radio show included Pitbull, Luke Bryan, Bastille, 30 Seconds to Mars, Kendrick Lamar, Blake Shelton, Ed Sheeran and Shakira and Arcade Fire.

To see more pics of Rihanna from the event, check out the gallery above.