 The tour was the first in which Charlie Watts used the famous Gretsch drum set that he continues to play with the Stones to this day, as well as his first employment of a china cymbal as a crash.The concerts featured backing vocals by Ronnie Wood and Keith Richards, something that the Stones would get away from beginning with their next tour when Richards handled the majority of the backing vocals himself.However, this United States tour did not carry on into Europe in 1979, breaking the group's similar schedule of performing in Europe every three years, which had started in 1967.