Shrine Auditorium, 665, West Jefferson Boulevard, University Park, Historic South-Central, Los Angeles, Los Angeles County, California, 90007, United States
Recording Academy
XXL's 'Today in Hip-Hop' says 'On Feb. 22, 1989 ... DJ Jazzy Jeff & The Fresh Prince led rappers to boycott the 31st annual Grammy[3] Awards'; Wikipedia[4] confirms the ceremony date at the Shrine Auditorium; no start time is given, so the pin is the all-day date.
At the 31st Grammy Awards on 22 February 1989 the first Best Rap Performance trophy went to DJ Jazzy Jeff & The Fresh Prince, who led a boycott because the category was not televised; Bobby McFerrin won Record and Song of the Year and George Michael Album of the Year.