Reggie Jackson wore the world's greatest hat to celebrate Dave Winfield becoming a Yankee

On this day, 37 years ago, the Yankees officially signed slugger Dave Winfield to a 10-year, $23 million contract -- at the time the richest in sports history. But while Winfield became a Hall of Famer over his nine years in the Bronx, we're not here to talk about that. We're here to talk about the outfit that his new teammate, Reggie Jackson, wore to the introductory press conference.
Just look at this thing:

At long last, the answer to that eternal question: What if Robin Hood had pivoted to a career as a funk singer?