Geoffrey Michael Geier, known as Big Mike Geier (height: 6'8"), is a singer, entertainer, composer, and leader of the band Kingsized, which is based in Atlanta, GA. His most critically acclaimed act is his alter ego: a Pagliacci-type clown named Puddles Pity Party.

In the early 1990s, Geier led a touring "Swing Noir" band, The Useless Playboys, before settling in Atlanta in 1995. Around this time, he started up an Elvis tribute band, Kingsized. Several years into Kingsized, he began experimenting with a clown-themed side project called Greasepaint, which laid the foundation for his later alter ego, Puddles.

As Puddles, he has appeared in YouTube videos since 2013, including some with Scott Bradlee's Postmodern Jukebox. He now performs almost exclusively as Puddles, but he also refers to Puddles as a completely separate entity from himself. Likewise, "Puddles" also won't acknowledge himself as Geier.

In 2017, Puddles participated in season 12 of the reality series America's Got Talent. He advanced to the quarterfinals at the Dolby Theatre, where he performed his version of "Royals".

He was handpicked by Neil Patrick Harris to perform Just for Laugh’s “Circus Awesomeus,” gala filmed for HBO Canada, and Jack Black selected Puddles for multiple performances at Festival Supreme.

In October 2017, Puddles made an appearance in a Cartoon Network ad promoting new episodes of Teen Titans Go! and OK K.O.! Let's Be Heroes. In January 2019, Puddles, began a headline act residency at Caesars Palace, Las Vegas.

In 2022, Puddles made a guest appearance on the season 4 season finale of The Conners.

Music composed and performed by Geier has appeared in television shows including iCarly and Victorious (2010). He is also known for No Place to Fall (2015) and Crazy Ex-Girlfriend (2015), among others.