Apparently that interview was posted on July 12, 2013 (see here). All articles on that site show today's date for some reason.
The song WAS his, but it didn't get any exposure so he's most likely sold it on... It's even got new title, replacing "ARE" with "R" (I wonder who would do that )
And the "[he's a] true superstar in every sense of the word" is just a play on the name of the Ibiza club night which closed last summer anyway.
Facebook post proving the article is from last year
The song was made by Dj Sander Kleinenberg under his alter ego 5k to promote his residency in the Superstars Party Series in Ibiza.
Quote:
What is the current top 10 you are spinning? 5K - We Are Superstars (Best record I've done in ages)
5K is his DJ alter ego, just as Stuart Price made remixes under several different names. There's an 5K remix of Katy Perry's Last Friday Night.
Moreover the interview also refers to Kleinenberg as "A true superstar in every sense of the word, what a summer in store for the big man" and it mentions the Superstar party series:
Quote:
Tuesday night sees you launch a very special residency at the all new Eden in Ibiza. How excited are you about Superstars?
I’m very excited! It’s always great to have a team of people creating artwork and ideas for nights like these. We had the opening last night and I have got to say the club is a diamond. Great sound system - definitely one of the best on the island. I'm gonna ****ing push this till it's the best. And the DJs I booked for the season are simply the hottest in the game round now. A.N.D.Y. ,Sharam Jay, Aeroplane, there is not a lot better. San Antonio will do itself a big favor to come round and party hard.
I'm kind of confused as to why Billboard posted that clip, with that description, after it has already been out for so long on this guy's Soundcloud or whatever. And the BBC thing with the artist being called "I.D." and stuff. Wut?