David Greenbaum (aka Mr G) is a San Francisco native who began performing professionally in the late 1900’s with San Francisco Opera’s production of Werther, featuring Alfredo Kraus and Renatta Scotto.

Performs locally and globally - all genres including: pop, rock, r&b, funk, musical theatre, jazz, operetta and opera.
Builds and supports community through the performing arts.

Produced, directed, and taught drama and music for schools and theatre companies throughout the Bay Area for 20+ years, including previously serving as Broadway by the Bay’s Youth Theatre Conservatory Director. Has taught 5,000+ students grades K through 12 and beyond.

Currently teaches music and drama and serves as the Principal for St. Thomas More School in San Francisco, CA.
Holds a Master of Arts in Teaching Theatre Arts and a Master of Arts in School Administration.
SFUSD's first VAPA MasterTeacher and is also a certified EQ Practitioner through Six Seconds Emotional Intelligence Network.

Arts activities and accolades include:
presenter and educator, American Conservatory Theatre (ACT); Outstanding Achievement Administrative Services Credential, NDNU 2017; SFUSD VAPA Dreamcatcher Honoree 2018; 2020 Music Educator Innovation Award recipient; 2020-2021 American Federation Teachers (AFT) Teacher Leader; 2021-2023 KQED Media Literacy Innovator; Little Kids Rock Regional Program Specialist and Modern Band Summit presenter.