Lady Gaga will be host and musical guest for SNL on November 16, just days after the release of her latest album, “Artpop.” This will be Gaga’s third time as musical guest, but first time as host. Josh Hutcherson has also been announced to host the latenight show on November 23, the day after the release of “The Hunger Games: Catching Fire.” The sister group HAIM will serve as musical guests on the same night. This will be both Hutcherson’s and HAIM’s first time on “Saturday Night Live.”