Question: What was the release date of the CD compilation which was a follow-up to a 2005 compilation of the same name, featuring the American actress and singer who played the title character of the Disney Channel comedy series "Lizzie McGuire"?
{'answer': 'September 9, 2008', 'supporting_facts': [['Disney Girlz Rock, Vol. 2', 0], ['Disney Girlz Rock, Vol. 2', 1], ['Disney Girlz Rock, Vol. 2', 3], ['Hilary Duff', 1]]}