After signing with Capitol Music Group in 2007, her fourth record label in seven years, she adopted the stage name Katy Perry and released her first Internet single "Ur So Gay" that November, which garnered public attention but failed to chart. She rose to fame with the release of her second single "I Kissed a Girl" in 2008, which went on to top international charts. Perry's first mainstream studio album One of the Boys followed later that year and subsequently became the 33rd-best selling album worldwide of 2008. It was accredited platinum certification by the Recording Industry Association of America, while "I Kissed a Girl" and her second single "Hot n Cold" both received multi-platinum certifications.
Katy Perry second studio album Teenage Dream was released in August 2010 and debuted at number one on the Billboard 200. The album included the Billboard chart-toppers "California Gurls", "Teenage Dream", "Firework", and "E.T." and most recently "Last Friday Night (T.G.I.F.)". The album produced five Hot 100 toppers, making Teenage Dream only the second album—after Michael Jackson's Bad—to do so. With "E.T." at number one on the chart of May 12, 2011, Perry became the first artist in history to spend 52 consecutive weeks in the top 10 of the Billboard Hot 100.
Katy Perry was credited as a guest judge on the seventh series of British television show The X Factor, has released a fragrance called "Purr", and voices Smurfette in the 2011 film The Smurfs. Perry had a long relationship with Travie McCoy; she married Russell Brand on October 23, 2010.