Apple has sent out its official (and colourful) invitations to its yearly Worldwide Developer Conference.

There are very few solid details regarding what we’ll actually see take centre-stage at the event on 8 June, but we expect to see our first look at iOS 9, as well as some tasty new apps and features for the fresh-faced Apple Watch.

We also expect Apple to finally lift the curtains off its long-rumoured Beats-powered music streaming streaming service, which will use Beats Music’s existing features like curated playlists, cloud-based libraries and recommendations to compete with the likes of Spotify, Rdio and Tidal. Previous rumours have pointed to a $7.99 (R97, at today’s rates) per month subscription, which would be cheaper than its rivals, if true.