Katy Perry's 'Prism' Set For No. 1 Billboard Debut With An Expected 275,000 Copies Sold

Katy Perry's "Prism" is set to roar its way to the top of the Billboard albums chart next week with an impressive forecast of 275,000 copies sold.

If industry predictions hold steady, Perry will see the best first-week sales of her career. Her last album, 2010's "Teenage Dream," opened with 192,000 copies sold, while 2008's "One of the Boys" moved 47,000 upon its debut. "Dream" has gone on to sell 2.8 million copies in the U.S., according to Nielsen SoundScan.

"Prism" is on course to top Miley Cyrus' "Bangerz," which sold 270,000 copies when it was released earlier this month. Perry will also come out ahead of Ariana Grande's "Yours Truly" (138,000), Vampire Weekend's "Modern Vampires of the City" (134,000) and Selena Gomez's "Stars Dance" (97,000). It falls significantly behind some of the year's biggest debuts, however, including Drake's "Nothing Was the Same" (658,000), Jay Z's "Magna Carta Holy Grail" (528,000), Justin Timberlake's "The 20/20 Experience" (968,000) and Daft Punk's "Random Access Memories" (339,000).

The forecast for "Prism" emphasizes a banner year for Perry, who nabbed her eighth No. 1 single with "Roar."

The official Billboard chart for sales ending this Sunday arrives on Wednesday, Oct. 30.

For more on Perry's debut, head over to Billboard.