Danny Alexander has outed himself as a Taylor Swift fan in an interview with BuzzFeed News.
Cue jokes about there being a blank space where the Lib Dems' policies should be and the coalition never, ever getting back together.
But that's far from the most embarrassing or unusual combination of politician and pop star.
Michael Ancram, the former Tory frontbencher, said he was partial to a spot of Meat Loaf.
In the same survey, his colleague Nicholas Soames showed his softer side by confessing to a love of Dido.
And Liam Fox admitted to a surprising love of Scissor Sisters.
Theresa May, meanwhile, will happily take to the floor whenever "Dancing Queen" comes on.
Labour, as you'd expect, are rather trendier.
Stella Creasy wrote the liner notes for an album by The Wedding Present.
Ken Livingstone appeared on a Blur song, "Ernold Same".
Gordon Brown didn't say he liked Arctic Monkeys, though he did say he preferred them to James Blunt.
In fact, he was more of a Coldplay man. Though he did choose Runrig and Kirsty MacColl on Desert Island Discs, so he's not completely Radio 2.
Meanwhile, Tom Watson used his resignation from the front bench to urge Ed Miliband to check out his favourite post-grunge act.
"John Humphrys asked me why you were not at Glastonbury this weekend," he wrote to Miliband. "I said Labour leaders can't be seen standing in muddy fields listening to bands. And then I thought how terribly sad that this is true. So: be that great Labour leader that you can be, but try to have a real life too. And if you want to see an awesome band, I recommend Drenge."
But what are the most embarrassing political musical passions, bar none?
Well, Alex Salmond chose The Proclaimers' "I'm Gonna Be (500 Miles)" as one of his Desert Island Discs, which does feel like a masterclass in pandering to your voters.
Even Shakira doesn't know why Nick Clegg chose her World Cup theme song "Waka Waka (This Time for Africa)" on the show.
For his own appearance, David Cameron went for Benny Hill's "Ernie (The Fastest Milkman in the West)".
But the runaway winner is Ed Miliband.
Appearing on Desert Island Discs last year, he announced that his favourite song of all time – the one single in the history of recorded music that he couldn't live without – was..."Angels", by Robbie Williams.
Still, he can console himself that however embarrassing his musical taste, it will never be quite as cringeworthy as this moment from the BBC's This Week.
