Steve Aoki, Tomlinson collaboration began with a Twitter

Steve Aoki says his collaboration with Louis Tomlinson got underway when the One Direction star "followed him on Twitter".
The 39-year-old musician features on the 25-year-old's debut solo single "Just Hold On", and has said their unlikely partnership started after he got the chance to fill in for a sick Calvin Harris at a show in Las Vegas, which Louis happened to be attending, reported Femalefirst.
"I play in Vegas a lot and Louis went to a Calvin Harris show and that night Calvin Harris cancelled, he was sick or something and they called me and said, 'Hey Steve, do you want to DJ Calvin's night because he can't make it?' And I was like, 'Yeah, I'm in town. Let's do this!'

"So I played and Louis and his friends were at the party and they were blown away by the set, you know. I was really happy I got to play that show and he followed me on Twitter. The old Twitter!" Steve said.