Despite playing love interests in the new animated film The Lorax, Taylor Swift and Zac Efron still claim that they aren’t dating. Which is such a shame, especially considering how adorable they are playing guitar together in this clip from The Ellen DeGeneres Show.

Taylor explains that she taught Zac a few key chords on the guitar (using must-have custom picks with Taylor’s face on them), and they start singing a perfectly harmonized rendition of Foster the People’s “Pumped Up Kicks.”

But, to Ellen’s surprise, they’ve changed the lyrics to turn the breezy song into a testament to how “weird” Ellen is, and reminisce on behind-the-scenes fun they’ve had during their many Ellen appearances. An example? Apparently Taylor isn’t quite over the time Ellen surprised her in a bathroom and nearly killed her. Check out the video here.

Listen to the duet, and the bizarre lyrical narrative, in the video below.

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Credit: Ellen Photo: Video: Taylor Swift & Zac Efron are a Couple...of Singing Musicians

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