Dublin-based band Kodaline headed into Radio 1 to see Fearne Cotton.
They took selfies, ate teeny tiny cupcakes, but more importantly covered Ed Sheeran's "Sing".
It wasn't just any old cover, the band surprised everyone when they added Bruno Mars' "Uptown Funk" and Taylor Swift's "Shake It Off" to the mix. Seriously, the mashup is awesome:
~swooooon~
Ed Sheeran himself took to Twitter to praise the band's cover: