For March's installment of The Boot’s ongoing Guest Room Sessions series, singer-songwriter K. Phillips performed his song “18 Year Old Girls” ... in the very spot he wrote it.

Phillips penned "18 Year Old Girls," an aging musician’s ode to the women who are just a little too young, at a friend's house in San Antonio, Texas. It's close to Texas Lutheran University, where Phillips, drummer Chris Compton and bassist Dave Haug, both of whom join Phillips for this session, met.

"We played in bands and bars together during our collegiate years," Phillips tells The Boot.

For his Guest Room Sessions performance, Phillips is also joined by Fort Worth musician Elaina Kay. The two met in 2016.

"These guys are all top-flight musicians and performers," Phillips says of his Guest Room Sessions guests.

“18 Year Old Girls” appears on Phillips’ latest album, Dirty Wonder, released on March 10; it was written by Phillips and the Band of Heathens’ Gordy Quist. Phillips describes Dirty Wonder as a “part-autobiographical, part-imagined, part-observational breakup album,” coming from an outsider’s perspective; it was produced by Quist and features a cameo from Counting Crows frontman Adam Duritz.