Tony Award®-winning actor James Monroe Iglehart will host HGTV’s Biggest Little Christmas Showdown—a four-part “mini-sized” holiday house tournament-style series. James, best known for his larger-than-life characters in Broadway’s Aladdin and Hamilton, will lead the nation’s best miniaturists as they face-off to create the merriest mini holiday houses, complete with all the festive, tiny trimmings.