Fort Carson's 4th Infantry Division Band will host its annual free holiday concert Saturday.The band includes a jazz combo, a rock band, a woodwind quintet and two brass ensembles that will play their versions of popular holiday tunes. This year's concert also features Hambone Bop in their debut performance. Fun animations, snippets of beloved holiday films, and a cameo by a special guest will add to the festivities, a news release from Fort Carson said.The concert starts at 7:17 p.m.