Charli XCX has promised in a tweet that she will record and release a new album next year if her song “1999” (featuring Troye Sivan) makes it into the UK top 10. Well, she claimed she would in a moment of excitement and on the internet that sort of a promise isn’t going to go away.

The tweet follows the song rising four places, to number 13 in the charts. “UMMM ANGELS WTF?!” she also writes alongside the retweeted chart data, in apparent disbelief.

The video for “1999” was released on YouTube on October 11 and has no doubt made a sizeable contribution towards the track’s chart place, having been viewed almost 16.5 million times at the time of writing. Appropriately, it features Charli XCX and Troye Sivan in a series of late 90s vignettes, from imitations of contemporary artists to a recreation of that pose from Titanic.

Earlier this week, Charli XCX also performed at a show in LA, as part of an effort to raise money for the cancer treatment of Billy Clayton, a musician from Norwich.