He is mostly known as a vocalist, guitarist, and co-writer for the indie rock band Tally Hall and sometimes referred to as "Yellow Tie" by some fans.

His other work has included a solo album titled Not a Trampoline (2014), and another viral video, "29 Celebrity Impressions, 1 Original Song".

[3] Later, in 2002, while attending University of Michigan, he formed Tally Hall with bassist Zubin Sedghi and musician Andrew Horowitz.

He graduated in 2005, and turned down a full scholarship to medical school in order to pursue music full-time with Tally Hall.

[4] Cantor's career as a member of Tally Hall saw the release of two full-length albums: Marvin's Marvelous Mechanical Museum (2005), and Good & Evil (2011).

[4] "The Bidding", which Cantor co-provided lead vocals for, was certified gold by the RIAA on July 12, 2023, along with the band's song "Hidden in the Sand".

[16][17] He frequently partners with Genevieve Goings in producing Disney-affiliated nursery rhymes, lullabies, and other simple children's songs, and The Ghost and Molly McGee features one-minute Cantor originals once per each episode.