Willie Nelson‘s Outlaw Music Festival powered its way to Philadelphia, PA on Friday as the multi-artist tour stopped into the city’s The Mann Center for the Performing Arts. Friday’s lineup of musicians once again treated fans to some guest sit-ins throughout the evening, most notably when Bonnie Raitt welcomed both Warren Haynes and Alison Krauss for a pair of covers during her set.

Related: Willie Nelson Welcomes Phil Lesh & The Terrapin Family Band, The Revivalists Members In Hartford

The first sit-in during Raitt’s set featured Mr. Haynes, who had already performed earlier in the day with his band Gov’t Mule. Haynes helped Raitt and her band deliver a cover of B.B. King‘s “Never Make Your Move Too Soon”, which has been in the Raitt setlist for years. Watch the bluesy performance of the B.B. King tune below.

Bonnie Raitt with Warren Haynes – “Never Make Your Move Too Soon” – 9/13/2019

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Afterward, Raitt welcomed Krauss to the stage to help cover John Prine‘s “Angel From Montgomery”, just as she’d done the week prior during an Outlaw Tour stop at Saratoga Performing Arts Center. Watch the performance from Friday below.

Bonnie Raitt with Alison Krauss – “Angel From Montgomery” – 9/13/2019

The Outlaw Music Festival continues on Sunday with a stop at Coastal Credit Union Music Park at Walnut Creek in Raleigh, NC. Head to Nelson’s website for tickets and tour info.

[H/T JamBase]