Michael Thomas Pinder was an English rock musician. He was a founding member and the original keyboard player of the rock group the Moody Blues. He left the group following the recording of the band's ninth album Octave in 1978. Pinder was renowned for his technological contributions to rock music, most notably in the development and emergence of the Mellotron in 1960s rock music. In 2018, he was inducted into the Rock and Roll Hall of Fame as a member of the Moody Blues. He was the last surviving member of the group's original lineup.

Brian Frederick Hines, known professionally as Denny Laine, was an English musician who co-founded two major rock bands: the Moody Blues and Wings. Laine played guitar in the Moody Blues from 1964 to 1966, and he sang their hit cover version of "Go Now". While the Moody Blues were on tour with the Beatles in 1965, Laine befriended Paul McCartney, who later asked him to join his band Wings.