Good Morning America may have had its largest concert ever when Taylor Swift took the stage in Times Square on Thursday morning.

Celebs Tweet Their Praise For 1989

"I legitimately am completely in awe of how many people are here," Swift said.

The 24-year-old performed "Welcome to New York," "Out of the Woods" and "Shake it Off" from her newly released fifth studio album, 1989.

Taylor Swift Shakes it Off on NYC Rooftop

She also revealed some big news - she's heading on tour very soon.

"We're in the early stages of planning the actual show," she said. "I'm excited about announcing things when I can announce them, but it's going to be happening."

Swift shared a photo of herself in front of the massive crowd after the show via Instagram. "Thank you Good Morning America, thank you to everyone who filled Times Square, thank you New York. #TS1989," she wrote as the caption.

A photo posted by Taylor Swift (@taylorswift) on Oct 10, 2014 at 9:43am PDT

Swift has seriously been having the best week ever. Her fifth album received an overwhelming amount of positive reviews from critics. New York Times critic Jon Caramanica said, "On this new stage, Ms. Swift is thriving. And crucially, she is more or less alone, not part of any pop movement of the day. She has set herself apart and, implicitly, above."

The album, released on Monday, is also expected to sell the most out of all the ones released in 2014. Despite its online leak prior to release, 1989 could sell more than a million copies in its first week, according to Billboard.