Hozier joined the New York songstress at the end of the show.

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll

Mavis Staples and Hozier at Electric Picnic 2018. Copyright Leah Carroll