John Lennon\/Plastic Ono Band is the first solo album by English rock musician John Lennon . It was released in 1970 after Lennon released three experimental albums with Yoko Ono and Live Peace in Toronto 1969 , a live show in Toronto credited to The Plastic Ono Band . The `` Plastic Ono Band '' in the album 's title refers to the conceptual band Lennon and Ono had formed in 1969 of various supporting musicians they would use on their various solo albums .