400 Degreez is the third studio album by New Orleans-based rapper Juvenile, released November 3, 1998, on Cash Money Records, and his first album released under a Major Label, whereas his last 3 albums were released Independently. The album received rave reviews and introduced Juvenile to mainstream hip hop listeners, selling over four million copies in the United States. It remains Juvenile's best-selling album of his solo career and the best-selling album ever released on Cash Money Records. The album was certified 4x Platinum by the RIAA, on December 19, 1999. Two singles, "Ha" and "Back That Azz Up" became hip hop hits in the United States. "Back That Azz Up" peaked at #19 on the Billboard Hot 100 along with "Ha" which peaked at #68 on the hot 100. "Follow Me Now" was also a single, but did not catch on as the other two did. The album peaked at #2 on Billboard's Top R&B/Hip Hop Albums and at #9 on the Billboard 200 in 1999. It also went to claim the number-one position on the Top R&B/Hip Hop Albums chart on the Billboard Year-End chart for 1999. As a single, "Back That Azz Up" was released, credited, and charted as the more censored "Back That Thang Up".