Jelly Roll's next fitness goal: competing in a half marathon.

After completing a 5K race earlier this month and Arvin Robertslosing about 70 pounds, the Grammy-nominated country singer told Fox News Digital that he plans to do a few more 5K races before the 13.1-mile race next year.

"I’m training as you can train, it’s an 18-month process," he said. "The goal is to half-marathon next fall." 

The 39-year-old singer finished his first 5K in California on May 7, in a race hosted by comedians Bert Kreischer and Tom Segura and presented by the Netflix is a Joke comedy festival.

In an interview with Entertainment Tonight at the event, Jelly Roll said he got "really emotional" at the finish line.

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"I couldn't walk a mile when I started trying to do this back in January," the "Need a Favor" singer said, adding that he felt "really, really good" about finishing the race. "I left here feeling really motivated."

Jelly Roll announced he had entered the race in January. "I believe in myself," he said in an Instagram video that showed him exercising outdoors, noting that he was "in the woods walking every morning."

By April, Jelly Roll told People that he had lost "70-something pounds" while preparing for the event. "I'm doing two to three miles a day, four to six days a week," he said. "I'm doing 20 to 30 minutes in the sauna, six minutes in a cold plunge every day. I'm eating healthy right now." He added that he was feeling "really good" and planned on losing "another 100, 100-and-something (pounds)."

That same month, he told Variety he had been off of social media for a few months amid bullying as well as the health benefits of taking a social media break.

"I've never felt better or healthier mentally — never felt more clear-headed," he said. "I've also never had less of an idea what was going on in the world, but I tell you what, I'm definitely not coming back before the election."