Tens of thousands of Spotify users around the world have reported they were unable to stream music on the app.
Downdetector, which tracks problems with platforms, showed 20,000 people reported Spotify was not working on Wednesday at around 13:30 GMT.
Since then there have been thousands more reports both in the UK as well as the US and parts of Europe.
Spotify told the BBC it was “aware of the outage” and “working to resolve it as soon as possible”.
The streaming service added that reports of the problems being caused by a “security hack” were “completely inaccurate”.
It urged users to check the platform’s @SpotifyStatus X account for updates.
Spotify says it has more than 675 million users worldwide.
Users reported they were still able to play music they had downloaded onto their device, however they were unable to view artists or use the search function on the app.
After trying to search for music, the app appears to time out and displays a message reading “something went wrong” with a refresh button.
“We’re aware of some issues right now and are checking them out,” the firm wrote on social media in response to rising complaints from users.
On social media a number of users told the company they were unhappy with the outage, and the impact the loss of music was having.
One urged the platform to hurry up and fix the issue as they were at the gym, while another pleaded for a quick fix as the loss of music was disrupting their revision.
More significantly, some said they would switch to rival streaming platforms such as YouTube or Apple Music.