Matthew attended and performed at the Muscular Dystrophy Association’s 48th Annual MDA Show Of Strength at the CBS Studios in Los Angeles, CA, on August 1, 2013. (HQ pictures)Public Events –> 2013 –> Muscular Dystrophy Association’s 48th Annual MDA Show Of Strength (August 1)Click on the pictures in the gallery to view the HQsThe MDA Show of Strength will air on September 1, 2013, at 9/8c on ABC.