Lulu the singer could replace some of the Luke Skywalker dialogue.
Her opening warbles to "Shout" would match Mark's open mouth during his "Nooooooooooooooooooooo" after Ben dies, but I rather like the idea of repeating the Obi-Wan "Nooooooooooooooooo" gag from the first ricdiculous edit (so they rhyme).
Maybe the real Lulu could replace Jedi Rocks or something.