The One Direction member was on Radio 1 with Nick Grimshaw when the DJ introduced his song Two Ghosts.
Grimshaw said: “So here we go, the one about Taylor Swift.”
Harry registered the comment and looked completely mortified, yelling: “Oh no!”
“We call it Two Ghosts,” Grimshaw added, as Harry continued to flail his arms in the air.
Watch below.
“I’m going to Capital!” he declared, referencing Radio 1’s rival station.
Harry’s debut album – which is self-titled – was released yesterday to generally positive reviews.
Positive feedback has included a three-star verdict from the likes of the Evening Standard, The Guardian, The Independent and NME.
Entertainment Weekly gave an encouraging B grade, while Rolling Stone issued a four-star critique.