Gladys Knight, Monica, and Brandy Join Billboard Presenters List

R&B will be represented well with three strong voices come Sunday.

Gladys Knight, Monica and Brandy have been confirmed to present at the Billboard Music Awards.

They join fellow presenters Lil Wayne, Wiz Khalifa, and Gavin DeGraw.

As previously reported, Chris Brown has also been added to the list of performers slated to take the stage.

Hosted by Ty Burrell and Julie Bowen, the Billboard Music Awards honor the best in music, digital and social media. Nominees include Adele, Justin Bieber, Chris Brown and Lil Wayne.

A tribute to the late Whitney Houston is also on tap, though full details have not been revealed as of yet. Stevie Wonder will be honored with an Icon Award.

The Billboard Music Awards air Sunday, May 20 on ABC.