The Greatest Sia feat. Kendrick Lamar Download 'The Greatest' on iTunes
Calvin Harris has announced that he is doing to release a new single 'in a month'.
Speaking to Metro he also revealed that the new track would not feature any vocals from him but a mystery guest.
He said: 'The next single will be coming up in about a month. I'm not singing on it- somebody else is
'It's like a new lease of life for me as a person. I get to make music and let other people do all the singing.'