October 27, 2014 11:30 AM

Taylor Swift is so ready to party like it’s 1989.

The singer has officially moved from country to pop with Monday’s release of her new album, named with a nod to her birth year.

“I feel so, without a doubt, this is the best thing I’ve done,” Swift, 24, told Good Morning America Monday about her latest project.

“This felt like the most authentic thing for me to follow because I’ve been playing around with pop sensibilities with my writing for the past couple of years, and I just really wanted to go for it this time,” she added.

The album, 1989, has been well-received by critics, and its first single, "Shake It Off," debuted at the top of the charts over the summer, according to Billboard.

RELATED: Kelly Clarkson Covers ‘Shake It Off,’ Taylor Swift Approves

And Swift is happy to finally show fans her labor of love. “To have people able to finally have [the album] now and to have the fans understand what I’ve been working on for two years, it’s just the most amazing feeling,” she said.

See her discuss 1989 on Good Morning America below:

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