Pearl Jam returned to New York’s Madison Square Garden for the first time in six years on Sunday night (September 11th). Rolling Stone reported tht joining the band for their customary set-closing cover of Neil Young‘s “Rockin’ In The Free World” was old friend and early touring mate, Red Hot Chili Peppers drummer Chad Smith.

Smith, who played to the side of the stage on a hastily-assembled mini-set, was reunited with former-Chili Peppers guitarist — and now auxiliary Pearl Jam member — Josh Klinghoffer.