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Peter Frampton sat in with Gov’t Mule this past Friday at Cincinnati, OH’s Taft Theatre. The singer/guitarist emerged near the end of the band’s first set for “Feel Like Breaking Up Somebody’s Home” and the Beatles’ “While My Guitar Gently Weeps.” Frampton, who lives in Ohio and has played with both Gov’t Mule and the Allman Brothers Band before, returned during the quartet’s second set for a cover of Ray Charles’ “I Don’t Need No Doctor.”

A number of other guests sat in with Gov’t Mule throughout the past week. Last Wednesday, guitarist Alvin Youngblood Hart appeared with Gov’t Mule on “The Hunter” and Traffic’s “Pearly Queen” at Oxford, MS’ The Lyric, and this past Thursday former Black Crowes guitarist Audley Freed emerged for The Rolling Stones’ “Ventilator Blues,” The Beatles’ “Dear Prudence” and Neil Young’s “Cortez the Killer” at Nashville, TN’s Ryman Auditorium. Finally, harmonica player Craig “Griff” Griffith took the stage for Tom Waits’ “Goin’ Out West” at the end of the band’s second set Saturday night at Grand Rapids, MI’s The Orbit Run. Griff returned with guitarist Larry McCray during the band’s encore for “”32/20 Blues.” Larry McCray was joined by his drummer Steve McCray for ”That’s What Love Will Make You Do” and helped the Mule close its show with “Soulshine,” a song he recorded with the band on The Deep End.

In related news, Gov’t Mule has joined the lineup for Chillicothe, IL’s Summer Camp festival. Other acts scheduled to appear include: moe., Umphrey’s McGee, Yonder Mountain String Band, The Avett Brothers and Keller Williams.