Via TrekMovie:

A music industry entrepreneur, [Mack] Elder tells TrekMovie that he is a life-long Trek fan and when he became familiar of the Universal Record Database and their events in New York, his first thought was to do something with Star Trek. Oh and before you nitpick that he wore a Star Trek 2009 movie shirt to the TOS episode recital, Mack explains it was more a matter of logistics than a canon violation, saying he just couldn’t fit into his old TOS command shirt. Happens to the best of us Mack.... Elder says that he is retiring from Trek record-setting while he is ahead, saying "doing all the episodes was my Wrath of Khan."