March 21, 2014 1:40 am Joel, Fallon Sing “The Lion Sleeps Tonight” Jimmy and Billy Joel loop their voices on an iPad app to form a 2-man doo-wop group — singing “The Lion Sleeps Tonight” by The Tokens in 4-part harmony. 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