Saoirse Ronan will make her hosting debut. Ronan can be seen in Greta Gerwig's film "Lady Bird," which is currently in theatres nationwide.
Twenty two-time Grammy Award winners U2 will join Ronan as musical guest, marking the band's fourth SNL performance and first network TV appearance in support of the legendary band's 14th album, "Songs of Experience," out Dec. 1. U2's North American tour, "eXPERIENCE + iNNOCENCE" kicks off in May.