From For The Win's, Alyssa Barbieri:

"One horse is taking the Internet by storm following an equestrian dressage event, where he showed off his rhythm at the Tokyo Olympics.  Team USA's four-time Olympian, Steffen Peters, and his horse, Suppenkasper (or Mopsi), have gone viral with (THIS) dressage Grand Prix Freestyle individual final."  Who says a horse can't bust a move!