Katie Couric began her stint co-hosting "Good Morning America" on Monday, April 2, almost six years after she left the ABC program's longtime competitor, NBC's "Today" show.
Meanwhile, former vice presidential candidate and ex-governor of Alaska Sarah Palin, a Republican political star who is often the brunt of jokes in the press and who Couric famously interviewed in 2008, will take on an identical guest role on the latter daytime program on Tuesday as both networks continue their battle for ratings, with NBC being a longtime frontrunner.
"It's a little strange, truth be told, and I'm a bit nervous - my heart's beating fairly quickly right now," Couric, 55, said on the show. "Six years. I first woke up at 1:15 this morning - like 'I'm ready to go!' Wait a second, I don't have to get up this early. Yes, I got back to sleep, I'm happy to report."
Couric is co-hosting the program while regular cast member Robin Roberts is on vacation for the week. Monday's episode featured a pre-taped segment showing Couric getting ready for her new stint - to the tune of LMFAO's "Sexy and I Know It," Wham!'s "Wake Me Up You Go-Go" and the Rolling Stones' "Start Me Up." She was also seen showing off some dance moves with Derek Hough of "Dancing With The Stars," ABC's hit reality show.
When asked by co-host George Stephanopoulos if she planned on competing on the series, Couric said: "No. There's not enough antiperspirant on the planet ... I would be so nervous and I would forget everything. I don't know how the people do it."
Couric also reported about Sunday's Academy of Country Music Awards and praised Taylor Swift for winning Entertainer of the Year (see a full list of winners).
"Taylor is great, I think, and a good role model for young women," Couric said.
Couric co-hosted the "Today" show for 15 years. She left the program in 2006 and joined the CBS "Evening News," becoming the first woman to anchor a network evening newscast on her own. The journalist, who has interviewed U.S. presidents and movie stars, exited the series in 2011 and joined ABC. She will host a new syndicated daytime talk show, "Katie," on the network this fall.
Couric had interviewed Palin in 2008 when she worked for CBS. Palin's comments about foreign policy and personal news consumption, in which she declined to name the publications she reads, inspired Tina Fey's now-famous impersonation of her on "SNL" and many say the interview helped doom her party's chances in the election.
The "Today" show aired on Monday a phone conversation between Palin and co-host Matt Lauer ahead of her upcoming appearance. He jokingly asked her: "What are you doing to prepare? Are you reading some newspapers?"
"That's a fine 'How do you do," the 48-year-old politician replied, cheerfully. "That's a great start. Here we go."
Palin's "Today" show run comes months before the 2012 presidential election. She is not a candidate but she said she does plan on discussing political issues on the "Today" show.
"I appreciate NBC's boldness in having me on," she added.
Tuesday's episode of the "Today" show is also set to feature a "big NBC announcement" from Ryan Seacrest, the show's executive producer Tweeted. The "American Idol" and "E! News" host has been rumored to have tapped to become a co-host of the program, which is owned by Comcast, the parent company of E!.