Brad Paisley is currently crossing the country on his Country Nation World Tour, which took him to Tinley, Ill., just outside of Chicago on Saturday night (May 31).

But after performing at the First Midwest Bank Amphitheatre, Paisley wasn't ready to turn in for the night, so he and his band, along with opening acts Randy Houser, Leah Turner, Charlie Worsham and Dee Jay Silver all headed to Joe's Bar in Chicago for an impromptu show.

The singers took the stage from 1:00 to 3:30AM, performing cover tunes and taking turns at the mic. Paisley dubbed the gig a "hangafter" party, and hints that more will occur over the next few months.

Paisley’s tour includes a very special appearance at the 2014 Taste of Country Music Festival, which takes place from June 13-15 at Hunter Mountain in New York. Other headliners at the three-day country music and camping festival include Dierks Bentley, Brantley Gilbert and Hank Williams, Jr.

The West Virginia native's tour comes in advance of his upcoming album, 'Moonshine in the Trunk,' which will be released on Aug. 26. Its debut single, 'River Bank,' which he says inspired the rest of the record, is already in the Top 20 and climbing.

“I was trying to figure out where to go from here, what to write and what felt like what I wanted to do,” he explains. “There’s a groove that feels like that and I think we grabbed that groove when we made this track and, more than that, there’s a mindset that I am completely ready for after this winter.”

In addition to his tour, which just added a series of shows in Canada, Paisley will also appear on the new ABC reality TV talent show, 'Rising Star,' which debuts on June 22.

See all of Paisley's upcoming concerts here.