August 18, 1969 – Jimi Hendrix closes out Woodstock festival with his rendition of The Star-Spangled Banner.

Woodstock 1969 Lineup and Songlist
More details at Wikipedia

Source: Wikipedia – http://en.wikipedia.org/wiki/Jimi_Hendrix

Related:
June 29, 1969 – The Jimi Hendrix Experience played their last concert
September 18, 1970 – James Marshall “Jimi” Hendrix died in his London apartment
Cool video #guitar lesson: “All Along the Watchtower”