On the new Billboard Pop Shop Podcast, Katie & Keith are talking all about the songs we need to hear from Usher on Sunday and what guests he might bring along for the ride. Will he skip "OMG" because he already played it during the Black Eyed Peas' 2011 halftime show? Are Lil Jon and Ludacris guaranteed to pop up for "Yeah!" and/or "Lovers and Friends"? Learn more about your ad choices. Visit megaphone.fm/adchoices