Vandal was an American glam metal band from Chicago, Illinois, formed in the mid-1980s. Vandal was founded by guitarist Dan Donegan, bassist Bob Feddersen, drummer John Sullivan, and vocalist Bob Johnson. John Sullivan and Bob Feddersen went on to form hard rock band Loudmouth. Steve "Fuzz" Kmak and Dan Donegan went on to found the then-nu metal band Disturbed circa 1995.