When the Ultra Music Festival lineup came out, Calvin Harris was not on it – for the second year running. Apparently this was a pretty big deal, as he’s reacted by releasing the “Ultra 2015 Acapella Pack.”

Free acapella downloads are pretty hard to come by, so this is great news for producers who want to write their own music to his vocal melodies.

The free downloads, available on Soundcloud, feature the vocals of his five biggest hits – ‘Summer’ ‘Blame”Outside’ ‘Feel So Close’ and ‘Sweet Nothing’