How will 'Saturday Night Live' top season-high ratings for last weekend's triumphant return of former cast-ember Jimmy Fallon? Have Harry Potter himself apparate in to guest host. Daniel Radcliffe make his debut as guest-host on the NBC comedy show on Jan. 14, when he'll be joined by musical guest 'Video Games' singer Lana Del Rey.
SOURCE: New York Daily News at 03:32PM on December 19, 2011