An Inside Look at Katy Perry’s ‘Letterman’ Concert (VIDEO)

Katy Perry was all business in the moments before her special “Live on Letterman” concert in New York Tuesday night, making sure the bright lights of the legendary Ed Sullivan Theatre didn’t drown out the neon feathers of her peacock costume.

“No spotlight,” Katy told the lighting crew in the sweetest voice she could muster. “You have to take the spotlight off me in the beginning!”

But the pop star of the moment couldn’t escape the spotlight inside the theatre, as smiling moms, drooling dads and little girls calling themselves Katy-Cats cheered her through an eight-song set on the day she released her sophomore album, Teenage Dream.

“It’s sort of like my birthday and Christmas Day all rolled into one,” she said. “It’s my release day!”

Wearing a glitter-encrusted white leotard and ruffly tutu, Katy strutted her stuff on a stage filled with faux cotton candy and lollipops, treating fans to a mix of old hits (“Hot N Cold,” an acoustic version of “I Kissed a Girl,”) current hits (“Teenage Dream,”) and soon-to-be hits like “Firework,” a new song Katy said she had “never played ever.”

Perry also rocked a hopping, show-stopping rendition of “Peacock,” complete with light-up neon peacock feathers, (and stage lights that seemed just right to us.)

After letting everyone see her peacock, as she says in the song, Katy shed the get-up to close the special set with – what else? – the ubiquitous song of the summer, “California Gurls.” She told the New York crowd not to be afraid to sing it loud.

“I love New York,” she said. “Although I fear for my life sometimes when I sing certain songs.”

Check out Katy’s special ‘Live on Letterman’ concert here:

Click through for a picture of Katy in her eye-popping peacock costume. What do you think of her new album, Teenage Dream? Hit us back in the comments.