Mikkel Storleer Eriksen:

Our management had spoken about him to us previously, but the meeting was by chance. He was working in the same Sony studio as us having some meeting, and the CD player didn’t work, so he asked to use our room for his meeting. We had the opportunity to play him some of our music. He said later that he couldn’t believe these two white guys were making such sultry music.

Tor Erik Hermansen:

When we worked with Ne-Yo, we knew it was our opportunity to see if we had what it takes. We played him this track [that eventually became “So Sick”], and he loved it, but his management wanted him to do a totally different kind of record. They insisted we stop what we were doing and try something else. Reluctantly, we went and did another song, but by the end of the night, we were like, “Let’s go back to that first idea!” When Ne-Yo finished the lyrics and sang us his vocal idea on top of the track, we knew we had something special. That night I took a cab home at 2 in the morning and woke up my wife like, “We’ve done it! We’ve written our best song yet!”

Via EW

“So Sick” was certified gold on Septemeber 15, 2009 and then certified platinum on June 25, 2007, both times by the RIAA.