Rihanna hosted her 4th annual Diamond Ball at Cipriani Wall Street in New York last night, and of course, her look was a total showstopper. Riri stunned in a sheer, lace Alexis Mabille Haute Couture jumpsuit covered in a massive bow ball skirt. She paired her look with a pair of huge Chopard diamond earrings and metallic sandals.

Though her look turned heads, the real highlight of the ball was the fundraising effort for Rihanna's Clara Lionel Foundation, which she founded in 2012.

"Clara Lional Foundation supports and funds groundbreaking and effective education, health and emergency response programs around the world. With the voices of Rihanna and her fans, CLF also engages in global advocacy with the goal of improving the quality of life for young people everywhere," says the official website.

In August, Rihanna launched an exclusive highlighter as a collaboration with Clara Lionel Foundation and her makeup line, Fenty Beauty, to help raise money for the cause.

"It's just a night where we wanna celebrate all the causes that we support," Rih said on the red carpet. "We want to raise as much awareness as we can, we want to raise as many funds as we can and have people come back year after year. We want to show them where their money is going and what we're doing here, our causes, how we pursue them and execute. Show them that they can trust our foundation."

The black-tie event was completely star-studded, as celebrities including Tiffany Haddish, Paris Hilton, Joan Smalls, ASAP Rocky, Issa Rae, and Seth Meyers were in attendance.

Childish Gambino performed, and Rihanna recorded him (on an old school camera, no less) from the crowd.

Rihanna has had a whirlwind week, as she just wrapped up New York Fashion Week with her buzz-worthy Savage X Fenty fashion show.