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Unplanned announcement - During an interview with BBC Radio 1 with Nick Grimshaw Sivan confirmed he has recorded a song with Ariana Grande.

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Pop queen - Sivan later took to Twitter and confirmed to his followers that he had made a song with his "pop queen".

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Radio 1 - He told the Radio 1 host “First of all I just love the song but second of all I just love the person so, so much. I was so gagged when I got it and we made it happen".

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Love - Sivan continued, "When I got the vocal back it sounded exactly like I thought it would and I was so happy.”

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'My My My!' - The 22-year-old 'My My My!' singer revealed that the collaboration will appear on his second album.

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BFFs - Sivan described his relationship with Grande as “actually like kind of friends. We met for the first time about two years ago. We just kept in touch."

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Nuts - Sivan went on to say that he thought Grande's voice was "nuts". Nuts good, one assumes.

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Ariana Grande - Grande, who last released an album in 2016, has also been sharing clips of new music on social media.

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Sophomore - No official date has been given for Sivan's sophomore album release but it is believed to be later this year.

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Carly Rae Jepsen - In a recent interview with PopBuzz, Sivan said he'd worked with Carly Rae Jepsen on a track for his forthcoming album. However, the song has not made it onto the final tracklisting.

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Hanging out - Sivan said to Nick Grimshaw on BBC Radio 1 that he and Grande were just hanging out one day when he played her the demo of the song.

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Always ask - "I said 'would you ever sing on this song?' And she just did it."

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More duets - He told Grimshaw the album is likely to feature other duets.

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TMI - Rather weirdly, he also revealed the idea for his hit single 'My My My!' came to him whilst sitting on the toilet in a cafe.

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Kick drum - "I heard through the door the sound of this little kickdrum and ran out to check what was playing. I took it into the studio and that was the starting point for [the track]."

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Super gay - Troye Sivan has always spoken openly about his sexuality and said he wanted the new track to be "really gay".

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Leather waistcoat - He continued: "The video is just me being as gay as I want. Leather waistcoat, strutting up and down, wind machine, all of it. It made me so happy."

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BRIT Awards - Ariana Grande was scheduled to perform at the BRIT Awards last week but had to cancel due to illness.

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Manchester tribute - The singer was due to perform in memory of the those affected by the 2017 Manchester bombing attack, which took place at her concert.

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Liam Gallagher - Luckily, Liam Gallagher filled in to sing a tribute to the 22 people killed in the attack.

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Instagram - Ariana Grande later posted an Instagram story of a video of Liam Gallagher performing 'Live Forever' in tribute.

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Quiet - Ariana Grande has been fairly quiet since the attack at her Manchester concert in May. The Siven collaboration could be the first things she has released since the atrocity.

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'My My My!' dedication - The loved-up 'My My My!' song is about the pop star's model boyfriend Jacob Bixenman.

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Besties - Troye Sivan is besties with Katy Perry. He covered her track 'The One That Got Away' in 2011.

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YouTube - Troye Sivan began his career as a teenage YouTube vlogger.

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'X-Men' - Troye played a young James Howlett in 'X-Men Origins: Wolverine' aged 14.

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'Spud' - He also played the main character in the film trilogy, 'Spud'.

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Time - Troye was named one of Time magazine's 'Most Influential Teens of 2014'.

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New album - The world waits with bated breath for album number two from Troye Sivan.

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