(CNN) -- Republican vice presidential nominee Sarah Palin plans to appear on "Saturday Night Live" this weekend, multiple sources told CNN Thursday.

"Saturday Night Live" has featured three opening skits in which former cast member and Palin lookalike Tina Fey portrays the Alaska governor.

It was not known whether Fey also will appear on Saturday night's program.

The live comedy program airs on NBC at 11:30 p.m. ET.

Fey first appeared as Palin for the show's season premiere last month in a sketch with SNL cast member Amy Poehler, who played Sen. Hillary Clinton.

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Fey reprised her role as Palin two weeks later, again alongside Poehler, who played CBS's Katie Couric in a parody of Palin's interview with the CBS anchor earlier that week.

Earlier this week, Palin told reporters that she'd love to appear on the show with Fey, The Associated Press reported.

"I love her, she's a hoot and she's so talented," Palin said, according to the AP.

"It would be fun to meet her, imitate her and keep on giving her new material."

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