However it turns out that the company might have already done so. No, Apple Music did not suddenly gain 25 million subscribers in the past two months, but rather according to a report from Digital Music News, Apple Music has managed to surpass Spotify in subscriptions based on the US market.
Their source has told them that both Spotify and Apple Music are boasting over 20 million subscribers in the US, but recently Apple Music has managed to pull ahead by a hair, although the report has declined to shared the specific numbers as requested by their source to protect their confidentiality.
This means that we should probably take this with a grain of salt for now, although if true we expect that Apple will most likely want to make some kind of announcement. Also it should be noted that this is for paid subscribers, not overall subscribers as Spotify has both paid and free tiers, while Apple Music only offers a paid tier.