"It's been great to get back on the bus... myself and the band and just bounce around the place."
However each night on the bus sounds like an absolute party that we NEED to be invited to.
"Our guitarist came up with this thing that we would have a different night every night on the bus," Niall continued. "So one night is country music night... we'll do rock and roll... etc.
"But the other night we were doing the Jingle Ball show, and after, we decided we'd go for a drink in San Francisco. So, we jumped on the bus, and Ed Sheeran and the rapper Logic came on the bus with us.
"Probably because Ed has ginger hair, we decided we were going to have Irish night on the bus. It turns out that Ed knows more about Ireland than all of us an we're all Irish."
But having a bus full of these legends wasn't the most memorable part of the night. They nearly crashed!
"We're leaving the venue and some car pulls up in front of the bus," Niall continued, "and we can't see through the window, and our bus just SLAMS on the breaks. I went flying. We're all on top of each other... I hit my nose on the top of a bottle of beer. Very aggressive."
OUCH!
Niall also explained that after the incident, Ed had nothing to wear and asked if he could borrow something of Niall's.
Turns out Ed is a lot broader than Niall, so he had to wear one of Niall's jersey's that had HORAN written on the back of it.
#BROMANCE!
"As if we weren't recognisable enough!" Niall laughs.
Watch the hilarious interview below: