The Young And The Restless celebrates the month of December with an assortment of guest stars guaranteed to bring holiday joy to Genoa City. Renowned psychic and best-selling author Sylvia Browne appears on Thursday, Dec. 7; Friday, Dec. 15 and Monday, Dec. 18. Browne plays herself and helps Genoa City grande dame Katherine Chancellor investigate a mystery from her past.

Judge Glenda Hatchett appears on Thursday, Dec. 14. Hatchett, star of the syndicated "Judge Hatchett," will be reprising the role of Judge Glenda Warren she previously played in September 2002. Judge Warren oversees a case involving Jack Abbott, Ashley Abbott, and Gloria Fisher Abbott.

International singing sensation pop-opera quartet Il Divo will perform on Friday, Dec. 29. The group, which previously appeared on the show in August of 2005, will perform "Somewhere," during Katherine Chancellor's New Year's Eve party.