Marx's Greatest Hits compilation was released in November 1997. The 16-track album includes a variety of hit singles from his first five albums plus "Angel’s Lullaby," a song written about his children originally appearing on For Our Children, Too, a compilation CD released in 1996 to benefit the Pediatric AIDS Foundation. Greatest Hits was released in Asia in November 1998 and included two new songs, "Slipping Away" and "Thanks To You," a touching tribute to his mother. Marx’s dedication and support of numerous charities has continued throughout his career.