This Autographed Official Super Bowl XX Program with the inscription of "SB XX Champs (Singletary), HOF 2002 (Hampton)" has been Personally Signed by Jim McMahon, Mike Singletary & Dan Hampton of the Chicago Bears. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website.