One of the Boys

"One of the Boys" is the second studio album by American singer Katy Perry, released on June 17, 2008, under Capitol Records. Produced in collaboration with prominent producers like Greg Wells, Dr. Luke, and Max Martin, among others, the album marked Perry's debut under her stage name following her earlier release, "Katy Hudson," in 2001 under her real name.

The album showcases Perry's transition to a pop-rock sound, featuring songs that blend catchy melodies with bold and sometimes controversial lyrics. Perry co-wrote most of the tracks, with standout songs like "I Kissed a Girl," "Hot n Cold," and "Waking Up in Vegas" becoming chart-topping hits. "I Kissed a Girl" notably became her breakthrough single, reaching number one on the Billboard Hot 100 and propelling the album's success.

Critically, "One of the Boys" received mixed reviews, with some praising its potential for producing hits while others critiqued the perceived weaknesses in its material. Commercially, it debuted at number nine on the US Billboard 200 and achieved top-ten positions in multiple countries including Austria, Canada, Germany, and Ireland.

The album earned Perry two Grammy Award nominations and has sold over 7 million copies worldwide, making it one of her highest-selling albums. It was certified triple platinum by the RIAA. Perry supported the album with several concert tours, including the 2008 Warped Tour and her solo Hello Katy Tour, further solidifying her presence in the pop music scene.