Olivia Munn’s Simple Dress Does a Lot With a Back That Plunges Down to Her Waist

To show support for John Mulaney’s Broadway show, Olivia Munn arrived in a simple outfit with a risqué back that plunged down her waist. On Monday, she and Mulaney walked hand in hand on the red carpet at the gala for “All In: Comedy About Love by Simon Rich” in New York City. The father of two stars in the play but it was Munn…