Third Man Records/Columbia; Ed Miles/Nonesuch RecordsJack White treated fans at the Lollapalooza Argentina festival on Saturday night to a pretty special performance.

Jack welcomed Robert Plant onto the stage for a rendition of “The Lemon Song” by Plant’s former band, Led Zeppelin. Plant handled the vocals during the performance, which has surfaced on YouTube.

Jack previously played “The Lemon Song,” off the Led Zeppelin II album, a couple of times during shows in 2014.

Plant was at the festival with his current group, the Sensational Space Shifters. White and Plant are both scheduled to appear at the Lollapalooza Brasil festival next weekend.

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