Listen to Ed Sheeran Radio on iHeartRadio

Ed Sheeran Radio

It looks like fans will have to form another theory about Ed Sheeran's song "Don't."  It was rumored for months that One Direction member Niall Horan was the man who inspired the scathing lyrics after he allegedly moved in on one of Ed's girlfriends. 

[RELATED: 5 Reasons Ed Sheeran's iHeartRadio Music Festival Performance Gets An A+] 

Photos taken after an iHeartRadio Music Festival after-party over the weekend, however, seem to debunk the theory.  Ed and Niall were photographed happily partying together at the XS Nightclub at the Wynn Hotel in Las Vegas Saturday night. 

One shot even shows Ed giving Niall a silly kiss on the cheek in the middle of the dance floor. 

[RELATED: You Know One Direction Takes The Stage When...]

The two also posed for photos with fellow celebrities like Macklemore and David Guetta. 

[RELATED: WATCH: Macklemore Joins Ed Sheeran On Stage To Perform 'Same Love']

Check out more photos from Ed Sheeran and One Direction's iHeartRadio Music Festival performances below!

Photos: Splash News