Mr. Jeff
Jeffery Christopher Klemm, known professionally as Mr. Jeff and Jeff Klemm, is an American singer, songwriter, record producer, and content creator. He makes children's music, and is a member of the The Recording Academy.
Personal life
Klemm was born and raised in Northeast Ohio, and now resides in Cuyahoga Falls. His brother is songwriter and record producer Drew Louis. He has three children. Klemm told Ideastream that he decided to get sober after the birth of his first son in 2016.Career
Klemm got his start performing in bands around the Akron, Ohio area. In February 2022, Klemm was on The News with Shepard Smith to speak on the third-party settlement organizations tax laws regarding services like Venmo and Zelle.In 2024, Klemm debuted his first children's music as Mr. Jeff, with his debut album Wonderful Wonderful Wonderful. Later that year, he got an honorable mention for the single "Loud In the Library" for the International Songwriting Competition children's music award. In June 2024, he became a member of The Recording Academy.
In August 2025, he released his third studio album, Big Kid Stuff, featuring children's musicians Miss Jessica, Fyütch, Ronnie Boy Kids, Tara Trudel, and Mega Ran. In 2025, he joined the board of directors at the Children's Music Network. Klemm was named as a 2025-2026 Music Incubator Artist for Cleveland Rocks by the Cleveland Foundation. In May 2025, he worked on a track for Fyütch's album Harmony, which won the Grammy Award for Best [Children's Music Album] in January 2026.