His first performance after the accident was his last American concert, on August 16, 1977; when the power went out, he continued singing without amplification.
Their first American concert together had been scheduled for Sept. 13 in Washington, and tour stops were expecting full houses.
Their final American concert was held at Tanglewood on August 21, 2008.
Karen Williams is an American concert and opera soprano.
At the end of the season, with more American concerts planned for the orchestra, all six did not have their contracts renewed.
They also played their first American concert at an anime convention in Houston, Texas on April 28.
The band would be playing its first American concert in 15 years without one of its best-loved members.
However, it returned for North American concerts.
A second round of North American concerts took place throughout September and October 2010.
Farrell said this would be Black Sabbath's only American concert in 2012.