Complex sentence: The third and most well-known incarnation of the band followed and would remain long lasting, including crooner vocalist George Reagan III, brothers Doni and Zach Blair, and drummer Tony Barsotti.
Split into simpler sentences: The third and most well-known incarnation of the band followed and would remain long lasting. The lineup included crooner vocalist George Reagan III, brothers Doni and Zach Blair, and drummer Tony Barsotti.