"A Matter of Trust" is a song performed by Billy Joel released as the second single from his album The Bridge.
The song was the second top 10 single from the album, after the album's previous single "Modern Woman." The song's music video features Joel performing in a building in New York City's Greenwich Village and also shows various people in the city who eventually look through the building's windows to see Joel perform. His then-wife Christie Brinkley appears in the video holding their baby daughter, Alexa. The song differs from most Joel songs in that is based around an electric guitar sound rather than a piano, the latter being Joel's main instrument.