Paul McCartney was lead vocals for what band ?
* Linda McCartney – Lead vocals , Electric piano * Paul McCartney – Hofner bass , Electric guitar , Piano , Wurlitzer , Electric piano , Backing vocals * James McCartney – Electric guitar , Acoustic guitar " Mister Sandman " ( Ballard ) – 2:50 * " Recorded in Jamaica at The Black Ark studio on 20 June 1977 and in Scotland in August of the same year . "