Who better to kill it in front of a "POP PUNK'S NOT DEAD" banner than genre royalty New Found Glory and Paramore queen Hayley Williams? As this video from a weekend performance in London shows, Williams hit center stage alongside NFG frontman Jordan Pundik and helped him belt out "My Friends Over You," a 2002 single and one of the band's biggest hits:

According to DIY Mag, Williams joined New Found Glory for both of the band's sold-out, tour-ending, back-to-back shows at the Kentish Town Forum. Interesting note about the collaboration: Williams has been dating NFG guitarist Chad Gilbert since 2008. Notice how she hops on his shoulders as he rocks out to the end of the song? #truelove (Also, in a different fan's video of the performance, Williams and Gilbert sneak a smooch before she starts singing.)

New Found Glory's eighth album, Resurrection, dropped in October, the same day their Warped Tour brethren Yellowcard released Lift a Sail. "A lot of the songs on this record aren't about girls or relationships," Chad Gilbert told Fuse just before Resurrection's release. "I feel like some of our older stuff has a deeper soul, and I think this album does, too. It's not just, 'Let's write a catchy melody!' The lyrics cut in a deeper place." The work certainly paid off in the concert-sphere — a few weeks before this "My Friends Over You" duet, NFG slayed in New York City on the Glamour Kills tour.