AceShowbiz -

Before playing on bigger stages on her upcoming tour with Nick Jonas, Demi Lovato stopped by "Good Morning America" on Friday morning, June 17 to play a mini concert as part of the show's summer concert series. During her visit, she played some of her hits for the crowd and surprised them when she brought out Brad Paisley.

Rocking a stylish black leather jacket paired with skin tight pants and strappy heels, the former Disney sweetheart delivered energetic performances of "Cool for the Summer" and "Confident" off her latest album in front of a big crowd in New York City's Central Park.

Lovato also launched into an acoustic rendition of her ballad "Stone Cold" with the help of Paisley and a pianist. She wowed everyone in attendance as she effortlessly hit the high notes over the country crooner's guitar licks.

The 23-year-old songbird appeared on "GMA" with Paisley just hours after the duo dropped the "Without a Fight" music video. In an interview on the show, she talked a little bit about the unlikely collaboration and revealed she might go country for her next album.

"I'm enjoying the country thing so much that I might put a little on my next album," she said. Paisley added, "She's from Dallas, so she's born with it."