Robert 'Bob' Kakaha, also known as Bobzilla (born March 5, 1970 in Los Angeles) is the bass guitarist for American rock band Hush Money, best known as the former bassist for heavy metal band Damageplan and heavy metal supergroup Hellyeah.
He was raised in the Silver Lake neighborhood of Los Angeles. He now is a resident of Dallas, Texas where he played with the rap rock band Hellafied Funk Crew and the Horror Rock band Shadow Reichenstein, and Vanilla Ice.
In 2003, The Abbott Brothers formed the heavy metal band Damageplan, after Pantera's breakup. Kakaha played bass, and former Halford guitarist Patrick Lachman on vocals. Damageplan recorded one album, New Found Power, which was released in February 2004. On December 8, 2004, Dimebag Darrell was shot onstage by former US marine named Nathan Gale in Damageplan's tour at Alrosa Villa in Columbus, Ohio. Damageplan was split up after the death of Dimebag Darrell.