Apple’s iCloud service will be unveiled at its next annual Worldwide Developers Conference (WWDC) and is thought to be a new cloud service for music.

What exactly iCloud will be is not yet known, but it’s thought to be Apple’s cloud service for music.

Apple (rather unnecessarily) confirmed on Tuesday that iCloud is coming as a “cloud services offering” but didn’t mention the music aspect.

According to reports, Apple has signed a licensing deal with EMI and possibly with Sony and Universal, which would pave the way for iCloud.

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Apple’s cloud service will be in competition with similar services from Google and Amazon that have been recently announced.

The WWDC – held in San Francisco on June 6 – will also be an opportunity for Apple to reveal details of its desktop and mobile platform, Mac OS X Lion and iOS 5.