There's a new development in the music streaming war: Spotify has reached 40 million paid subscribers, according to a tweet from founder Daniel Ek—soaring ahead of Apple Music's 17 million subscribers.

Read more: Apple vs Spotify vs Tidal: Which streaming service sounds the best?

Spotify announced in March 2016 that they had hit 30 million paid subscribers. That means, in six months, Spotify gained 10 million more paid subscribers.

Apple announced during its iPhone 7 event last week that Apple Music reached 17 million subscribers, meaning it only increased by 4 million since a report from April.

In other words, according to these new statistics, Spotify is not only leaps ahead of Apple Music in paid subscribers, but it's growing at a faster rate as well.

In his tweet, Ek said “40 is the new 30. Million.” A Spotify spokesperson confirmed to Forbes and 9To5Mac that the 40 million is indeed 40 million paid subscribers.