Lovato released her third album, "Unbroken", on September 20, 2011. Begun in July 2010, the album experimented with R&B and featured less pop rock. The album and the stylistic change received mixed to positive reviews from critics, who saw a growth in musicianship because of her struggles and have praised Lovato's vocals but found the music more generic than her previous efforts. The record was a commercial success, peaking at number four on the "Billboard" 200, with sales exceeding 97,000 copies in its first week of release, and going on to sell over 500,000 copies in the United States, being certified Gold.