Premise: Artpop . The album received generally mixed reviews from music critics , but was commercially successful , debuting at number one on the United States Billboard 200 with first-week sales of 258,000 copies , becoming Gaga 's second consecutive number-one record in the United States and selling 757,000 copies .
Hypothesis: 757,000 copies were sold of Artpop.
Label: ENTAILMENT