Atlanta native Big Boi kept it all the way funky during his performance on Monday evening’s “Late Show with David Letterman.” The OutKast member, backed by Purple Ribbon recording group Vonnegutt, gave a rousing rendition of his hit “Follow Us,” the latest single off his recently released solo debut Sir Luscious Left Foot: The Son of Chico Dusty. Sporting baggy jeans, a black t-shirt and a snow white furry hat that nearly covered his shades, he doled out rapid fire rhymes over record scratches, trumpet blasts and guitar power chords, capping the performance with a shout out to his Twitter page. It’s about time to heed his instructions and follow him.