An on-air wedding of 34 couples -- gay, straight, of various ages, races and colors -- will take place Sunday night during the Grammy Awards. The ceremony will be part of Macklemore and Ryan Lewis' performance of their Grammy-nominated hit "Same Love."

The duo's producer, Ryan Lewis, told The New York Times that the ceremony "will be in our minds the ultimate statement of equality, that all the couples are entitled to the same exact thing."

Queen Latifah will officiate the ceremony and Madonna will join the number with Macklemore, Lewis, and the song's featured vocalist, Mary Lambert. Lewis is particularly excited because his sister, Laura, will marry her fiancee, Alex, during the ceremony, according to the paper.

Macklemore and Ryan Lewis are nominated for seven Grammys, including song of the year for "Same Love." The show will be broadcast live on CBS at 8 p.m. ET.