Robert Plant made a surprise appearance to perform with Buddy Miller at Hardly Strictly Bluegrass music festival in San Francisco, California on October 3.

Ahead of his own performance with Saving Grace at the festival on October 4, Plant joined Miller to perform five songs.

Here’s “Somewhere Trouble Don’t Go”:

Here’s “Satan, Your Kingdom Must Come Down”:

Here’s “Angel Dance”:

Here’s “Fortune Teller”:

Here’s “Rich Woman”:

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