The original members of the Alice Cooper Band reunited this week for a rare performance, following a book signing at a record store in Dallas, Texas.

There were 200 people in attendance, according to DangerousMinds.net, and those lucky few were able to witness a once-in-a-lifetime concert experience. Good Records in Dallas had arranged for the surviving members of the Alice Cooper Band to do a signing of bassist Dennis Dunaway’s recently published autobiography, Snakes! Guillotines! Electric Chairs!: My Adventures in the Alice Cooper Group.

So, the signing attendees had an opportunity to see the band’s rhythm guitarist and keyboard player Michael Bruce, the aforementioned Dunaway, and their drummer Neal Smith. And, Alice Cooper’s current lead guitarist Ryan Roxie sat in for band’s late original lead guitarist Glen Buxton, who passed away in 1997, to round out the lineup in Dallas. But, Cooper’s appearance at the event – and much less performing onstage with his former bandmates – came as a complete surprise.

One attendee posted to Facebook: “Alice’s unannounced walk on took the roof off the building, and our brains,” DangerousMinds.net reported. All in all, Cooper and his former band mates played an eight-song set, together.

So, which eight songs made the set list?

Consequence of Sound reports that the reunited Alice Cooper Band performed “Caught in a Dream,” “Be My Lover,” “I’m Eighteen,” “Is It My Body,” “No More Mr. Nice Guy,” “Under My Wheels,” along with “Schools Out,” and “Elected.”

“Caught in a Dream,” “I’m Eighteen,” and “Is It My Body” appear on the Alice Cooper Band’s third album, Love It to Death, which was released in early 1971. “Under My Wheels” and “Schools Out” were both released as singles in 1971 and 1972, respectively. Then, “No More Mr. Nice Guy” and “Elected” are from the band’s sixth studio album, Billion Dollar Babies, which went to No. 1 on the charts in America and the United Kingdom in 1973.

Check out fan shot footage of “Caught in a Dream” and “Elected,” below.

And, when he is not surprising fans at record store book signings, Alice Cooper has been keeping busy with his super-group project The Hollywood Vampires.