What Christmas album featuring Eric Hansen had songs included on the Christmas 25th Anniversary Collection album by Mannheim Streamroller?
Christmas 25th Anniversary Collection:  It contains songs from their "Mannheim Steamroller Christmas" (1984), "A Fresh Aire Christmas" (1988), "Christmas in the Aire" (1995), "My Little Christmas Tree" (1997), "" (1998), "Christmas Extraordinaire" (2001), "Christmas Song" (2007) and "Christmasville" (2008).
i don't know