Simplify the following text for a Grade 7 native English-speaking person.
Original: It was released on June 15 , 2010 and debuted at # 1 on the US Billboard 200 chart and sold 447,000 copies in the United States in its first week of release .
Simplified: The album debuted at number one on the US Billboard 200 chart with first-week sales of 447,000 copies .