“I would say just from the five years I've been here, it's the most performances,” McCarthy said, with Seacrest adding that 38 performances would be "crammed" into the broadcast.
Seacrest talked to Robach about turning 40 on Christmas Eve.
“I'm just getting acclimated to it. But I'm excited,” he said.
Asked by Robach whether he felt like a 40-year-old, Seacrest replied, laughing: “No, but – I look it.”
McCarthy and Seacrest were put to the test when Robach hit them with a lightning round of questions.
“What's your new year's resolution for 2015?” she asked.
Seacrest replied: ”To find someone to kiss on New Year's Eve,” while McCarthy answered: “To stop self-criticizing myself.”
Asked what they would first buy in 2015, Seacrest said “scented candles” while McCarthy replied: “Probably a trainer.”
“If you weren't doing the New Year's Eve show, where would we find you?” Robach asked, and the co-host’s answers were almost identical.
“Literally, on my couch,” Seacrest said.
“Sitting on the sofa in thermals,” McCarthy said.
Asked what super power he would choose if they could have one in 2015, Seacrest said: “Grow taller.”
"Dick Clark's New Year's Rockin' Eve" with Seacrest will air Wednesday night beginning at 8 p.m., ET on ABC.