Tug of War (Paul McCartney album) and lasted from 3 February to 2 March, ending with "Ebony and Ivory" and "What's That You're Doing", two songs featuring Stevie Wonder. 10cc guitarist Eric Stewart also became a frequent collaborator of McCartney's during this period. Further sessions that summer were undertaken at Martin's AIR studios at Oxford Street, London. The sessions were so productive that several of its tracks were held over for McCartney's next album, "Pipes of Peace", which followed in 1983. The rest of 1981 was spent in a quiet fashion, with McCartney and Martin touching up the album and perfecting it. In a contemporary review
Stevie Wonder success. At the end of 1962, when Wonder was 12 years old, he joined the Motortown Revue, touring the "chitlin' circuit" of theatres across America that accepted black artists. At the Regal Theater, Chicago, his 20-minute performance was recorded and released in May 1963 as the album "". A single, "Fingertips", from the album was also released in May, and became a major hit. The song, featuring a confident and enthusiastic Wonder returning for a spontaneous encore that catches out the replacement bass player, who is heard to call out "What key? What key?", was a No. 1 hit on