Co-founder and CEO Daniel Ek revealed the latest numbers during a interview at the D: Dive Into Mobile conference in San Francisco.

He also stated Spotify coming to the US is imminent, but could not provide a specific date. "A business and a product problem at the same time" were cited as being behind the continued delay in its US launch.

"We are definitely going to do the US," he said. "What time horizon are we going to do it ...