Dan Sullivan began his musical career with Ivy League, a quartet from Chicago's western suburbs who released one 7-inch EP in 1990. He then joined
Screeching Weasel in 1991 and remained with the band until 1997. He also played with
The Riverdales, Cinco De Gatos, and
The Queers during his time with Screeching Weasel. After leaving Screeching Weasel, Panic relocated to
San Francisco where he eventually drummed for the bands
Groovie Ghoulies,
Pansy Division,
The Plus Ones,
The Avengers (sometimes called "The Scavengers" during this period), and
Beulah, usually performing under his real name. In December 2016, Panic joined
Squirtgun, a band formed by fellow Screeching Weasel alum and producer
Mass Giorgini, who had produced records by bands Panic had performed with, including Screeching Weasel, the Queers, the Riverdales, and the Groovie Ghoulies. ==Partial discography==