Hundreds show up to run with comedian Kevin Hart

He didn’t give Atlanta much notice. But hundreds raced to Piedmont Park Friday morning to run with comedian Kevin Hart.

Hart used Twitter late Thursday to announce his impromptu 5K. He reminded his followers early Friday this wasn't just a photo opportunity.

“If you are not serious about running please don’t come,” Hart posted on Twitter. “This is about getting healthy & doing it in a positive way.”

The unplanned runs are a part of Hart’s new partnership with the wellness app Rally Health, for which he is serving as a brand representative by promoting the #RallyWithKevin campaign on Twitter while on his “What Now” tour.

“ATL was amazing today,” Hart told The Atlanta Journal-Constitution after the 5K. “As you see, I’m winded. I’m tired. To be honest with you, I gotta go to the bathroom. Right now.”

Hart’s next stop is at Philips Arena, where he performs twice Friday and once Saturday.