Except for its brief run as a news show in 1957, Conan O'Brien is the shortest-serving host. O'Brien hosted 146 episodes over the course of fewer than eight months before Leno was brought back as host, where he served for almost four additional years. Current host Fallon took stage on February 17, 2014. Fallon had previously hosted "Late Night with Jimmy Fallon", and before "Late Night" he was a popular member of the cast of "Saturday Night Live", co-hosting the "Weekend Update" with Tina Fey as well as performing sketches.