[6] The group continued as a four-piece until July 1968, when Relf and McCarty left due to creative differences, primarily with Page.
To replace Glen and Idan, the group added Andy Mitchell on lead vocals, acoustic guitar and harmonica, with David Smale joining on bass.
[20] The band's lineup remained stable until early 2012, when Dreja was forced to stop performing after suffering two strokes.
[24] A few days later, it was announced that McCarty and Topham would return with former lead singer and guitarist Idan, bassist Kenny Aaronson and Myke Scavone on harmonica and percussion.
[25] Within a month of announcing a new lineup in February 2015, the Yardbirds postponed all tour dates due to "health concerns and extenuating circumstances".
[27] However, due to "scheduling conflicts" Slick was unable to tour with the group, and on 12 August 2015 Johnny A. was announced as the band's new lead guitarist.