The cable channel also said Ann and Nancy Wilson of Heart and comedian Jeffrey Ross will appear on the show. They will join previously announced guests and performers Katy Perry, Sugarland, Keri Hilson, Nicki Minaj, Paramore and Grace Potter & the Nocturnals, VH1 said.
Comedian and television host Kathy Griffin is to serve as host of the evening.
The USO Presents "VH1 Divas Salute the Troops" is to air Sunday on VH1 and internationally courtesy of the Armed Forces Network.
Celebrity Breakups and divorces of 2014 [PHOTOS]