Ryan Seacrest reacts to Mariah Carey's planned return to New Year's Eve special

Mariah Carey will perform one of her classic songs, "Hero," just before the clock strikes midnight on New Year's Eve, one year after a televised performance mishap that left the singer "mortified."

Carey will perform the song and more of her hits on "Dick Clark's New Year's Rockin' Eve with Ryan Seacrest" on ABC, Seacrest said today on "Good Morning America."

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"New year [is] about new beginnings," Seacrest said. "She’s a legendary, iconic artist so we’re excited to have her back to do it again."

During last year's "Rockin Eve" show in Times Square, Carey struggled to sing her song "Emotions" while a set of prerecorded vocals played in the background.

After Carey left the stage, she tweeted that "s--- happens."

Her camp later claimed that the TV production staff dropped the ball when it came to making sure her in-ear monitors worked; a rep for Dick Clark Productions denied any implication that the company would "intentionally compromise the success of any artist."

"I’m of the opinion that Dick Clark would not have let an artist go through that," Carey told Entertainment Weekly at the time. "He would have been as mortified as I was in real time."

Seacrest called Carey an "old friend" and said, though he didn't have the idea to bring her back, he is glad she is returning to the show.

"It’s not my idea but it’s a good idea," Seacrest said. "I think people are excited to see her back. People love her. She’s beloved."

"I think it’s going to be an amazing moment with her," he said.

Carey will be joined on the televised show by other musicians, including Britney Spears, Joe Jonas and Imagine Dragons, performing in at various sites across the country.

Seacrest, who will share hosting duties again this year with Jenny McCarthy, said he is mostly worried about the near-record low temperatures expected in New York City on Sunday night.

Revelers could be in store for the coldest ball drop since 1962 in Times Square. ABC News is forecasting a temperature of around 10 degrees with a wind chill of minus 4 when the calendar turns to 2018.