Why James, Zooey, & Taylor Crashed Seth Rogen's Monologue

This week's Saturday Night Live host, Seth Rogen, didn't waste an opportunity to make fun of his good buddy (and frequent target) James Franco, with his monologue. Rogen presented the journal he kept during the week prior, which jokingly revealed that his prank caused Franco's recent Instagram scandal. Franco, of course, showed up, but he's not the only surprise guest! Zooey Deschanel and Taylor Swift also popped up, with hilarious reasons for doing so.