Diana Harold is a vibraphone player who performed with They Might Be Giants at several shows in December 1997 at the Mercury Lounge in New York City.
She performed on "Finished With Lies," "Meet James Ensor," "Spiraling Shape" and "Planet Of The Apes," which ended up on Severe Tire Damage.
She also performed on "The Bells Are Ringing" at her final show and the last show of TMBG's 1997 tour, which is still the only occasion it has been performed in front of an audience.