As expected, retired Fleetwood Mac keyboardist Christine McVie joined her former bandmates on stage last night (September 25th) at London's O2 Arena for a show-closing rave-up of their 1977 Rumours classic, "Don't Stop." McVie, who quit the band shortly after its 1997 live album The Dance and reunion tour with Lindsey Buckingham, will also perform tomorrow night (September 27th) for the final London gig of Fleetwood Mac's current world tour. NME.com reported that during the show, Stevie Nicks dedicated "Landslide" to Fleetwood Mac co-founder, legendary blues guitarist Peter Green, who was in attendance.