There’s something about the Foo Fighters, the headliner at this weekend’s Virgin Fest in Baltimore, that made them a classic as soon as they formed in the 1990s.

As rock fans know, Dave Grohl formed the band in 1995 after the suicide of Kurt Cobain and the breakup of Nirvana. Though the band may have been formed as something of a side project for Grohl, it has steadily maintained top chart positions and a highly engaging stage show.