Notables for whom he has performed include Bill Clinton , Al Gore , and the 14th Dalai Lama .
Harrison performed at the United Nations in 1999 , in celebration of the 50th anniversary of Israel 's independence .
Notables for whom Harrison has performed include Bill Clinton , Al Gore , and the 14th Dalai Lama .
Harrison performed at the United Nations in 1999 , in celebration of the 50th anniversary of Israel 's independence .