Listen to What Shall I Do To Show How Much I Love Her (Dioclesian, Z627) [feat. James Bowman] online. What Shall I Do To Show How Much I Love Her (Dioclesian, Z627) [feat. James Bowman] is an English language song and is sung by Concerto Caledonia and David McGuinness. What Shall I Do To Show How Much I Love Her (Dioclesian, Z627) [feat. James Bowman], from the album Purcell's Revenge, was released in the year 2021. The duration of the song is 3:48. Download English songs online from JioSaavn.