Their self-titled debut album was successfully released to European countries in , and later debuted in the U. After heavily publicized legal battles with their former manager Lou Pearlman and former record label Bertelsmann Music Group , the group's second album, No Strings Attached , sold over one million copies in one day and 2. Celebrity debuted with 1. Blige , country music band Alabama , and Gloria Estefan. The group received eight Grammy Award nominations.