Neil Patrick Harris kicked off his hosting duties for the 2013 Tony Awards with a show-stopping opening number Sunday night.

The eight-minute-long act featured musical recaps of nominees, including Kinky Boots, Motown: The Musical, Pippin, Bring It On and Matilda the Musical.

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The opening's standout act wasn't Harris (who returned for the fourth time to emcee), however, but rather former boxing champion and The Hangover series star Mike Tyson, who makes a brief cameo at the 3:15 mark.

Sure, he doesn't do much onstage, but Tyson's mere presence at the Tony Awards — which recognizes excellence in American theater — is enough to blow anyone's mind. It's not unwarranted, though, as the former boxer recently embarked on a touring one-man show that also hit Broadway.

Watch his appearance in the video, above; then tell us what you think in the comments.

Image via Neilson Barnard/Staff/Getty Images