Marking 32 years since the original movie hit the big screen, yesterday marked Ghostbusters Day and to celebrate Jimmy Kimmell Live played host to the newest breed of spirit hunters Melissa McCarthy, Kirsten Wiig, Leslie Jones, and Kate McKinnon, who talked everything from the legacy of the franchise to filming in secrecy. But that’s not all, as Bill Murray, Dan Aykryod, Ernie Hudson, and Annie Potts dropped to both casts old and new unite for the first time. Check it out below.