Ben Folds has covered “Grey Seal” among other Elton John jams throughout his career, and John’s influence is obvious in Folds’ own plucky piano-pop. So it must have been a huge thrill for Folds when John invited him on stage Sunday during his Bonnaroo-closing set to perform “Grey Seal” together. Watch fan-made video of the performance below.

[Photo by Jeff Kravitz/FilmMagic, Inc.]