One Direction’s Niall Horan reunites with former flame Ellie Goulding for Jingle Ball

Ellie Goulding and Niall Horan reunited backstage at Jingle Ball [Niall Horan/Instagram] While touring a string of shows in the US, the singers reunited backstage to share some laughs and even take a quick snap.  Both Ellie and Niall shared the same sweet black and white photo, showing them both in fits of laughter.  “Me making @niallhoran laugh as usual,” Ellie wrote alongside the photo, to her 12.8 million Instagram followers.  Meanwhile, Niall …