Complex sentence: As of July, 2016, the album has sold over 1,000,000 copies in the United States, it contains the "Billboard" Hot 100 top-five single "Stressed Out", which reached number two in February 2016.
Split into simpler sentences: As of July, 2016, the album has sold over 1,000,000 copies in the United States. It contains the "Billboard" Hot 100 top-five single "Stressed Out", which reached number two in February 2016.