It looks like Niall Horan is back ON with his controversial ex-girlfriend

He left hearts breaking after his appearance at the AMAs this weekend, and let's not even talk about that Zayn handshake…

But after all the lights and cameras were off him, it looks like Niall Horan had a little rendezvous with his former flame.

The singer headed out to a gig in LA with Jessica Serfaty, who caused major controversy earlier this year when it was alleged she ditched her 7-year-old son to hang out with the famous Directioner.

The pair dressed casual as they went from the gig into Naill's car and it is presumed they kept the party going on elsewhere.

The rumoured couple were first linked together back in March, and after they were spotted in the US together numerous times, Jessica's ex-husband blasted her in the media.

He said: "She doesn't see Roman as regularly as you'd like to hear. So she sees Roman six weeks out of every year and some Christmases. Last Christmas she didn't see him.

"She's probably not thinking about us. When I see she dated Joe Jonas or Niall I'm just indifferent. I don't feel good or bad it's pure indifference. It doesn't matter to me. 

"What matters to me is what she does when she has Roman for those six weeks and that she's a good mother to him then."

Images: Roger/AKM-GSI