Andriano is a graduate of St. Edwards High School in Elgin. He enrolled in a psychology class and left after he answered a question asking where the word "lunatic" comes from. He returned to the college once only to "get [his] money", stating that the course was a waste of time because he already knew the material.
In 1993 he and several friends from the Elgin area formed the punk-ska fusion band Slapstick, with Andriano playing bass and contributing backing vocals. He would remain a member through the release of two full-length albums (Lookit! and a self-titled compilation) until the group's breakup in 1996. After the breakup he and two other ex-members of Slapstick formed the band Tuesday, which released a single EP titled Early Summer in 1997.