Your feet won't resist the temptation if you're near a radio during Wednesday's MEDICINE BALL CARAVAN (11am-noon Central Standard tuned to 88.7FM locally orwww.krvs.org): spins include the newest Tedeschi Trucks Band, David Egan, Willie Nelson with Mavis Staples and The Preservation Hall Jazz Band. Also: some C.J. Chenier, Florence + the Machine, Lee Dorsey, The Band, Blazer Boy, Rodney Harris, Willis Jackson and Charles Mingus.......dig?!