Guest Stars Emmy Rossum as Herself Betty White as Herself Scarlett Johansson as Herself Whitney Cummings as Herself Miley Cyrus as Herself Cesar Millan as Himself Paula Abdul as Herself Kathy Griffin as Herself Kesha as Herself Randy Jackson as Himself Wendie Malick as Herself Zendaya as Herself Zachary Levi as Himself Olivia Munn as Herself Andy Cohen as Himself Carrie Ann Inaba as Herself Sia as Herself Hilary Swank as Herself Ricky Gervais as Himself Chelsea Handler as Herself Linda Blair as Herself Ross Mathews as Himself Stevie Wonder as Himself Andra Day as Herself Emmylou Harris as Herself Dwight Yoakam as Himself Brandon McMillan as Himself