The Dr. Grace Augustine of 'Avatar' is going to take the hosting job on January 9, while Alicia Keys will be performing on January 16.
Actor Sigourney Weaver and R&B singer Alicia Keys have been lined up to visit the first two episodes of "Saturday Night Live" in 2010. They will be joined by Charles Barkley and The Ting Tings.
The episode where Sigourney will be hosting is going to be televised on NBC on January 9. The actress who tackles the role of Dr. Grace Augustine in movie "Avatar" will come along with U.K. pop-duo The Ting Tings who are booked to provide the tune.
As for Alicia, the "No One" singer will be making a live appearance one week later. The singer, who has just released her fourth studio album "The Element of Freedom" earlier this month, will be accompanied by basketball legend Charles Barkley.
Charles is scheduled to sit as a host for the January 16 episode of the sketch comedy series. He previously hosted the show in its 1993 season premiere with musical guest Nirvana.