In 1981, Mayo was asked by Joey Kramer of Aerosmith to play keyboards in his band Renegade fronted by vocalist Marge Raymond. In 1983, Mayo played keyboards on Aerosmith's first tour in three years, in support of their Rock in a Hard Place album, also adding background vocals.
In 1981, Mayo was asked to join Joey Kramer's band Renegade, fronted by Marge Raymond.  He then joined Aerosmith for their comeback tour in 1983, playing keyboards and singing backup vocals on their Rock in a Hard Place album.