We already knew Daniel Radcliffe was something of a frustrated rapper after showing off his (seriously impressive) MCing skills on Jimmy Fallon’s US chat show last year.
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Let's just say his rapping skills are rather better than his attempts at being a receptionist.
The couple were enjoying a night out at Cameron’s Pub in Half Moon Bay, California when they took to the stage to perform the megahit from 2000.
Mobile phone video footage shows the 25-year-old actor performing the tricky verses of the song before Erin jumps in for a very enthusiastic rendition of the chorus, cheered on by the other punters in the pub.
At the end of the clip, Daniel can be seen walking over to his girlfriend and planting a kiss on her before leaving the stage.
Watch the couple in action in the video clip above.