"Sweet Home Chicago" is a popular blues standard in the twelve bar form. It was first recorded and is credited to have been written by Robert Johnson. The list of artists who have covered the song is immense, Magic Sam, Buddy Guy, Earl Hooker, Honeyboy Edwards, Freddie King, Luther Allison, Johnny Shines, Keb Mo with Corey Hart, Foghat, Status Quo, Johnny Otis, Fleetwood Mac, Eric Clapton, Stevie Ray Vaughan. in February 21st 2012, Barack Obama encouraged by BB King, sang Sweet Home Chicago. en.wikipedia.org