Coming off a massive year of success, the duo, which earned such nominations as Album Of The Year for The Heist and Song of the Year for Same Love, featuring Mary Lambert, will perform the song on the big stage, assisted by a guest appearance by Madonna.
During the performance, 34 couples from all walks of life (including gay, straight and different races) will be wed on-air. Queen Latifah will officiate the ceremonies.
Lewis' sister will be included in the event, as she weds her boyfriend. The pop producer recently said the weddings "will be in our minds the ultimate statement of equality, that all the couples are entitled to the same exact thing."
"I expect that people with all kinds of opinions might voice them, and that’s healthy,” Neil Portnow, president of the National Academy of Recording Arts and Sciences, said in an official statement. He also noted that the weddings aren't meant to come across as a stunt. "We don’t need to stoop to the level of trying to find gimmicks and sensationalistic approaches to what we do."
Show producer Ken Ehrlich explained to reporters that the couples will not be wed on the actual Grammy stage, but there will be aisles constructed near the live event. "It seemed like less of a ‘show’ than if I put them onstage,” he said. "I don’t want them to feel as though they’re on parade."
The Grammy Awards go live from LA's Staples Center and will be broadcast on CBS Network at 8 p.m. EST.