Music streaming service Grooveshark’s iPhone app was forced out of Apple’s App Store following complaint from the UK arm of Universal Music Group.

Dispute between Grooveshark and rights holders was reportedly the reason for taking down the app.

Grooveshark said that the concerned app was pulled in response to a complaint Apple received from the UK arm of Universal Music Group, which is reportedly has a contract with rival Internet-radio service Spotify.

However, Grooveshark said that it was committed to get the concerned app back into the App Store and into the hands of iPhone users.

Commenting on the issue, Grooveshark said in a blog post, "This comes as an absolute surprise to us, and we are not sleeping until we figure out exactly how to fix this—and get Grooveshark for iPhone back in the App Store.”

The Grooveshark app was originally submitted a year ago, but was repeatedly rejected by Apple. Finally, it was accepted on August 8.