Taylor Swift is the nicest person - she's let a cast of 70 year olds use her hit song Shake It Off in their performance.
The cool thing it, the play is about 17- year olds on the last day of school, with the cast being the elderly actors.
And despite rehearsing to the track, the Belvoir Street Theatre in Sydney, Australia hadn't actually been given permission to use it as opening night approached.
When they tried to get permission and when it all became a "very technical, legal process, with multiple publishers, managers and agents involved" the answer was... no.
The Seventeen cast and crew then decided to take it upon themselves to directly ask Tay-Tay to help save the day and she said YES.
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Appaz Tay's song is crucial to the plot development.
The play's director said it's a "really iconic pop track that speaks to 2015".
Before they got the thumbs up from Taylor, who tweeted them to say "Permission granted", the veteran actors tried to contact anyone and everyone who may be able to pass on the message to the singer, including Ed Sheeran, Hugh Jackman and Russell Crowe.
Well actually, local comedian Tim Minchin asked Ed for them.
It was no doubt Taylor was going to find out about this request, especially when the hashtag #greygrey4taytay began to trending in Australia.
Seventeen stars the Aussie actors, who "play a group of teenagers (!) drinking, singing, dancing, gabbling, worrying and maybe even pashing (!!) their way through their last night of childhood and their first night of adulthood."
Well done Taylor! And good luck #GreyGrey4TayTay, we salute you.