Brian Liesegang

Brian Liesegang (born February 10, 1970) is an American songwriter, producer, composer, guitarist and programmer, and a founding member of the industrial rock band Filter, who opened up for The Smashing Pumpkins during the Infinite Sadness tour. In 2005, he joined Billy Corgan on the TheFutureEmbrace tour, playing keyboards, providing live programming, and occasionally playing bass guitar. The band was nicknamed "The Fellowship of Broken Toys".

In addition to his work with Corgan, Liesegang has worked with Nine Inch Nails, Ashtar Command, and Veruca Salt.