YouTube said it will block videos from indie artists such as Arctic Monkeys and Adele, unless they sign up to agreements surrounding its new ad-free streaming music service.
Google, which owns YouTube, has been renegotiating contracts as it prepares to launch the music subscription service and has signed deals with the major labels.
But the internet giant is threatening to block independent artists from using the entire YouTube platform — free or paid — if they do not agree to the terms of the new streaming service.
Robert Kyncl, YouTube's head of content and business operations, told the Financial Times that videos from independents could be blocked "in a matter of days," if new licenses were not negotiated.
YouTube's entry into the music subscription market comes after Amazon launched a similar service for its Prime members, and Apple bought online music service Beats Music.
It is two billion and counting for Psy and his irrepressible Gangnam Style. The South Korean pop star's surprise hit has become the first YouTube video to surpass two billion views.
The unlikely viral star holds the record for most overall views and most views in a day with 38 million for his Gangnam Style follow-up Gentleman.
No other video comes close to Gangnam on the streaming service's list of top videos. Justin Bieber's Baby is the only other billion-plus video at 1.04 billion views.
Cute kid video Charlie Bit My Finger - Again! is a distant third with 711 million views.
The constitutional court in Turkey has ruled that a block on access to YouTube is a violation of rights, local media have reported. The block was imposed by Prime Minister Tayyip Erdogan's government two months ago.
Blocks on access to YouTube and Twitter were imposed after audio recordings, purportedly revealing corruption in Erdogan's inner circle, were leaked on the sites. The block on access to Twitter was lifted in April.
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A court has lifted the ban on YouTube in Turkey but 15 videos will continue to be blocked, Ankara court documents show.
Officials had blocked access to the site as a "precaution" after voice recordings purportedly of senior officials discussing a potential operation in Syria were posted on the video-sharing website.
Twitter users inside Turkey have been expressing their frustration at the reported YouTube ban.
Google said it was looking into reports that users in Turkey are unable to access YouTube. IN a statement, it said there was "no technical issue" on their side, and that they were looking into the problem.
We're seeing reports that some users are not able to access YouTube in Turkey. There is no technical issue on our side and we're looking into the situation.
Turkey has blocked access to YouTube as a "precaution" officials said, after voice recordings purportedly of senior officials discussing a potential operation in Syria created a "national security issue", a source at the prime minister's office told Reuters.
The source said Turkey was in talks with YouTube and may lift the ban if the content was removed.
The comes less than a week after the Turkish prime minister blocked access to Twitter after vowing to "eradicate" the social media site.
Prime Minister Tayyip Erdogan threatened to ban Facebook and Youtube earlier in the month after wiretapped audio recordings linking him to allegations of corruption damaged the government's reputation ahead of local elections.
Mr Erdogan insists the recordings, widely shared on Facebook, YouTube and Twitter, were fabrications.