"Liam Birt"@en . . "Liam Birt is the oldest person in the bands road crew. He has been with them since 1972 as lighting and guitar tech. Between now and then he has been many diferent things. Today he is the bands Tour Manager."@en . "Liam Birt is the oldest person in the bands road crew. He has been with them since 1972 as lighting and guitar tech. Between now and then he has been many diferent things. Today he is the bands Tour Manager."@en .