In the movie, Carmen Twillie was the lead singer who sang "Circle of Life" along with Lebo M and his South African choir who sang the background African chants heard in the song. All of their names are seen on the end credits at the end of The Lion King.
All of them sing on it. Paul sang The Night Before, Another Girl, I've Just Seen a Face, Yesterday and others. John sang Help, You've Got to Hide Your Love Away, Ticket to Ride and others. George sang I Need You and You Like Me Too Much. Ringo sang Act Naturally.
"Sang" in English is Ho cantato ("I sang"), Hai cantato ("You sang"), Ha cantato ("He sang," "She sang"), Abbiamo cantato ("We sang"), Avete cantato ("You all sang") and Hanno cantato ("They sang") in Italian.