Randy Waldman is an American pianist, arranger, composer, and conductor. He has frequently collaborated with Barbra Streisand, serving as her pianist and conductor since 1984. Waldman has worked with notable artists including Frank Sinatra, Michael Jackson, Whitney Houston, Beyoncé, Ray Charles, and Stevie Wonder. His 2018 album Superheroes garnered the award for Best Arrangement at the 61st Annual Grammy Awards.

John Patitucci is an American jazz bassist and composer.