With John Mayer concert tickets ranging from $35 to $75, not to mention the hefty and annoying “convenience charge,” the 33-year-old poster boy for the modern blues gave back to his fans and performed a free, impromptu concert for University of South Carolina students.

According to Rollingstone.com, Mayer and his tour crew had been rehearsing at a venue in town, and several of the students gathered around the venue to try to get a glimpse of Mayer.

Being the social networking fiend that he is, Mayer tweeted an invite saying, “USC students: come watch us run the show tonight. Free.” Over 400 people showed up for the show and not only were they treated to a full-fledged preview of Mayer’s 2-year Battle Studies world tour, but also witnessed the pyrotechnic and light displays as well as a live camera feed that projected the show across a huge screen.

A fansite for Mayer called Try JM posted the full setlist from the night’s performance.

“Heartbreak Warfare”

“Crossroads”

“Vultures”

“Perfectly Lonely”

“Assassin”

(Steve Jordan solo/jam—>)

“Waiting on the World to Change” ->

(keyboard solo -> jam )

“Half of My Heart” (with Fleetwood Mac’s “Dreams” interpolation)

“I Don’t Trust Myself”

“Say”

“Edge of Desire”

“Why Georgia”

“Gravity”

Encore:

“Who Says”

“Body is a Wonderland” (John and Robbie only)

“All We Ever Do Is Say Goodbye”

Talk about right place, right time.

- Jessica Cole

Currently Listening to: “Late Night Tip” by Three Six Mafia