Simplify the following text for a Grade 5 native English-speaking person.
Original: Who 's Next is the fifth studio album by the English rock band The Who , released in August 1971 .
Simplified: Who 's Next is the fifth album by the English rock band The Who . It was released on July 31 , 1971 by Decca and MCA in the United States and August 25 , 1971 in the United Kingdom through Track and Polydor .