The best a cappella performance I have ever witnessed was the improv rifting he did at an appearance on the Arsenio Hall Show with Evander Holyfield and Hammer where Ali saaaaang during the entire commercial break that was soo incredible that Arsenio could not stop him when the show returned from break Arsenio let him continue into the show after the commercial break because the crowd was going totally bananas!! Arsenio let him continue to saaaang after the show resumed and we ALL just sat and listened mesmerised in complete amazement, wonder and joy, now Keep in mind that show had Evander Holyfield and Hammer as guest as Evander was preparing for a title fight!!!!! At the Stag Festival in Romania, he did a featured segment with the Temptations that is still being raved about where he continued to sing solo for 20 minutes while the others went to the dressing room and changed! You can listen to his music at http://www.aliolliewoodson.com/