Da Vinci's Notebook (or simply DVN) was a comedic a cappella singing group. Former Artists-in-Residence at the John F. Kennedy Center for the Performing Arts, they performed specials on Comedy Central and PBS, and spent time as the "house band" on Washington radio's WBIG-FM. They were also regular guests on the nationally syndicated Bob and Tom radio show.
In Alexandria, Virginia, during the summer of 1993, Bernie Muller-Thym, Greg "Storm" DiCostanzo, Paul Sabourin and Richard Hsu banded together to join a six-man a cappella group that was advertised in the Washington City Paper. Muller-Thym, DiCostanzo, and Sabourin met through the newspaper ad, while Hsu was a friend of DiConstanzo from the University of Maryland. The six-man group did not last and would disband soon after. Muller-Thym, DiCostanzo, Sabourin, and Hsu would then form Da Vinci's Notebook. Bass singer Jay Jones would join later in the year, singing with the group until 1994.