Complex sentence: O'Keefe and Anderson had played together for several years in Anderson's solo group, introduced variously as "Rusty Anderson Band" and "Rusty Anderson and Friends", the band performed in cities throughout the USA, The UK and Iceland.
Split into simpler sentences: O'Keefe and Anderson had played together for several years in Anderson's solo group, introduced variously as "Rusty Anderson Band" and "Rusty Anderson and Friends". The band performed in cities throughout the USA, The UK and Iceland.