Dave Eggar is an American cellist, pianist, and composer. As a child prodigy, he began playing the cello and piano at age three and performed as a singer and actor on Broadway and at the Metropolitan Opera by age seven. Eggar trained as a classical cellist at the Juilliard School, graduating from Harvard University and Juilliard's Doctoral Program. He debuted in Carnegie Hall at 15 as the youngest winner of the Artists International competition. His career includes concerto appearances at Avery Fisher Hall, London's Barbican Centre, the Paris Opera, and the Hollywood Bowl. Eggar collaborated with a wide range of artists across various genres, including Phillip Phillips, Tony Bennett, Lindsey Stirling, Andrea Bocelli, and Coldplay. Notable works include his cello performance on Coldplay's "Viva La Vida" and collaborations with Esperanza Spalding and Frank Ocean.