On Saturday night, the comedian and host of HBO's “Last Week Tonight” saw his latest crazy creation set out into the world as the Erie Moon Mammoths made their debut in front of a record crowd of 7,070 at UPMC Park.

The Moon Mammoths are here. In a matchup of two of the most widely discussed alternate identities of the year, the Erie Moon Mammoths -- the Minor League team conceived and designed by the late-night

The SeaWolves had no say on their rebrand name or logo. The Last Week Tonight team dug into Erie’s history to pick Moon Mammoths, a name inspired by the 1991 discovery of woolly mammoth remains in a local lake. Oliver threw out the first pitch at the game, which drew a record-setting crowd of more than 7,000 fans.