Has an MLB player ever worn their hat backwards during a game? - Quora
Ken Griffey Junior Adds Another Record Under His Hall of Fame
Ken Griffey's hall of fame press conference and other tidbits
Hall of Fame hat announcements: Mariners for Griffey, Mets for
Hall of Fame Caps That Could Have Been
Ken Griffey Jr put on backwards hat during Hall of Fame speech (Video)
Griffey, Piazza inducted into Hall
Ken Griffey Jr.'s emotional Hall of Fame speech makes him more
Different paths lead Griffey, Piazza to Hall of Fame
Ken Griffey Jr. and Mike Piazza inducted into Hall of Fame