There's nothing quite like pop veterans ushering in the next generation of pop superstars and we're so glad this pairing happened.
At an Ally Coalition charity show held by Jack Antonoff this week, Hayley Kiyoko surprised the small crowd in a town hall in New York by bringing none other than Taylor Swift on stage to play her Reputation cut, Delicate.
It's stripped back, personal and intimate - a far cry from the blockbuster versions of Delicate we saw recently at Taylor's Reputation world tour.
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Plus Hayley providing harmonies to Taylor is insanely awesome. It's not the first time they've been on stage together either - back in July, Taylor invited Hayley up for her Reputation tour show in Boston.
The event also featured performances from Lana Del Rey, Mitski, Rostam, Regina Spektor and more (FOMO much?).
Check out some fan-shot clips below and let's hope the two get together in the studio sometime soon.
TAYLOR SWIFT AT ALLY COALITION WHAT THR HELL pic.twitter.com/0tvrYLBx8Q
— jonah (@planettropico) December 6, 2018
Taylor Swift and Hailey performing at the Ally Coalition pic.twitter.com/vk5D2wgkCI
— omarxnyc (@omarxnyc) December 6, 2018