You will Watch The Real Ghostbusters Season 2 Episode 21 online for free episodes with HQ / high quality. Stream cartoons The Real Ghostbusters Episode 34 Banshee Bake a Cherry Pie? Peter’s favorite rock-star singer Shanna O’ Callahan arrives in New York turns out to be a banshee, an Irish spirit whose voice causes chaos. She is now planning to take over America. When the Ghostbusters are about to confront her, but what can they do when Peter falls under her spell?