Former president Bill Clinton joined local rock band Jimmy Ellis & The Houserockers onstage for a cover of Lynyrd Skynyrd's 'Sweet Home Alabama' Saturday. 'Come on up here, Mr. President!' Ellis urged Clinton, whom he spotted near the back of the crowd. 'Show the nice folks how it's done!' Following the performance, Clinton remained onstage for a rollicking rendition of Garth Brooks' 'Friends In Low Places.' 