I saw the same thing last night. I was driving down Five Forks Trickum Road towards Lawrenceville. I even pulled over and called some friends in the area to see if they could see it too. It was crazy; I've never seen anything like it in the 17 years I've lived here
I live in Canton and see these things all the time – I even named them "the Blinkers" have some great photos of one changing colors and then morphing from one to three orb lights… it's very cool! A couple of videos too – great catch!!!
This is some scary stuff. My mom's best friend lives in Atlanta and she's got these in her backyard right behind the trees. Her and her husband told us they saw them. They all really quickly got into a line, and then they zoomed down to the ground right behind the trees at lightning speed and disappeared. This stuff is not fake.