Complex sentence: Kenny Loggins first solo Album entitled, "Kenny Loggins with Jim Messina Sitting In" was completed and made its debut in November of 1971 together with the band Messina has assembled the toured and sold over 20 million albums by the end of 1976.
Split into simpler sentences: Kenny Loggins first solo Album entitled, "Kenny Loggins with Jim Messina Sitting In" was completed and made its debut in November of 1971. Together with the band Messina had assembled they toured and sold over 20 million albums by the end of 1976.