Published Tuesday, 31 December 2013
The rocker's health scare prompted the band to axe a tour of Australia and New Zealand, but he returned to the stage with the group on Monday for a special end of year show in Las Vegas.
The public gig at the MGM Grand Garden Arena will be followed by a private concert on New Year's Eve on Tuesday.
Speaking before the first show, frontwoman Stevie Nicks told America's ABC News Radio that the gigs will be "really good for John" so he can "get back on the treadmill" after undergoing treatment for cancer.
During the concert, Nicks thrilled a pair of famous fans in the audience by dedicated the band's song Landslide to John Mayer and Katy Perry.
Mayer was so thrilled about the shout out, he grabbed his girlfriend's cell phone and updated her Twitter.com account, writing: "John here. Katy can't write because she's getting over Stevie Nicks dedicating Landslide to us at the Fleetwood Mac concert. Unforgettable... While I'm at it I have a couple things I'd like to get off my - oh, she's motioning for the phone back. Gotta go!! -JM."