On July 26, 2015 — Four players, all elected by the BBWAA, are inducted into the Hall of Fame in Cooperstown, NY as the Class of 2015: pitchers Randy Johnson, Pedro Martinez and John Smoltz, all elected on their first presence on the ballot, and 2B Craig Biggio. Martinez steals the show by dancing on stage and entertaining the large contingent of visitors from the Dominican Republic who have come to witness his induction.

Source:
Baseball Reference July 26