October 18, 2012 11:38 am Double Duty: Bruno Mars Takes On SNL Singer Bruno Mars will both host and perform as the musical guest on “Saturday Night Live” this weekend. US & World Videos 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 5:44 May Day demonstrations, Gaza war protests continue across Bay Area 3:27 May Day demonstrations planned, Gaza war protests continue across Bay Area 2:27 Junk fee law bans restaurant surcharges