The author-illustrator 'duo' will be signing their books tomorrow.
They sang a 'duo'. [=(more commonly) 'duet']
He and his partner make/form quite a 'duo'.
(..) Oh, God. You ever listen to K-BILLY's "Super Sounds of the 's"? It's my personal favorite. Joe Egan and Gerry Rafferty were a duo known as Stealer's Wheel... when they recorded this Dylanesque, pop, bubble-gum favorite... from April of . That reached up to number five... as K-BILLY's "Super Sounds (..)1992 Reservoir Dogs