The show was stopped at the Tipsport Arena with just hours to go so the 29-year-old did the impromptu gig instead.
Even though he rescheduled for another date he didn't want his fans to go away empty handed.
He wrote on Instagram: "The love and fellowship we shared last night will be forever tattooed on my heart."
In a video he posted you see Jason being told by his tour manager that the show can't go on because of safety concerns.
He then looks worried about the fans saying:"I mean they been outside since seven this morning, all day long bro.
