PHOTO: Katy Perry, Kathy Griffin Prep For VH1 'Divas'

Katy Perry and Kathy Griffin are all ready to salute the troops, VH1 Divas-style. The pop star will perform in the VH1 Divas Salute the Troops special. Griffin, the host, posed with Perry wearing their military-style outfits during preparation for the ceremony, and Perry later posted the photo on her Twitter.

"I love her. QUEEN OF COMEDY @kathygriffin#DIVAS!" Perry tweeted. She also later posted a photo of the camouflage-painted nails she wore as a part of her outfit.

Perry will sing "Boogie Woogie Bugle Boy" with Keri Hilson and Jennifer Nettles. Sugarland, Nicki Minaj and Paramore are among the other stars slated to perform. The special airs Sunday. –ISHITA SINGH