R.E.M.'s Peter Buck and Mike Mills play 'Walk on the Wild Side' with Joseph Arthur
Singer-songwriter and Reed friend goes unplugged on upcoming album 'Lou'
Joseph Arthur, Wilco's Pat Sansone among guests to benefit homeless LGBT youth
Feist and Bon Iver also contributing to 'And I'll Scratch Yours'
Singer-songwriter and Pearl Jam guitarist unite for charity compilation
Preservation Hall Jazz Band, Joseph Arthur will also perform at January 2nd show