If all three songs will be performed in a medley (some years they split up the songs in 3-2 or 2-2-1 or 1-1-1-1-1, etc.), then I could see all three rising from the floor in their famous pose for the title song "Dreamgirls" and to the tune of "Dreamgirls." Then they go off in three different directions and sing each song seperately.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle