Short description of Christmas Carol Karaoke 1.01: Christmas Bells Karaoke Caroling, beautiful backgrounds! Powered by InspiredCode's Home Group Overhead (HGO) program, this package delivers family fun every Christmas season. HGO is shareware, the Caroling runs for free (even on expired demo) every December, every year, so you'll want to burn a CD of the install files to keep with your Christmas lights and tinsel.