Original: Shortly after, on 28 April, Pavarotti made his La Scala debut in the revival of the famous Franco Zeffirelli production of La Bohème, with his childhood friend Mirella Freni singing Mimi and Herbert von Karajan conducting.
Simplified: He was singing in the famous Franco Zeffirelli production of La Bohème, with Mirella Freni singing Mimi and Herbert von Karajan conducting.