The Main Thing Live 1982:
http://www.youtube.com/watch?v=q44NRmVNVRQ1min 13 sounds like very much like:
Singers: All day all day long
BF: It's The main thing
Singers: All day long
BF: the main thing
Singers all day long
BF: It's the main thing
Singers: All day all day long
J.O'B.