Jeff Kravitz/FilmMagic; Francis Specker/Landov
April 05, 2009 12:55 PM

Country’s biggest stars are heading to Sin City for the 44th annual Academy of Country Music Awards, which will be broadcast live from the MGM Grand Sunday on CBS at 8 p.m. ET.

Carrie Underwood is up for the night’s top honors, entertainer of the year (a fan-voted category this year), against four of country music’s biggest cowboys – Brad Paisley, Kenny Chesney, Keith Urban and George Strait.

Those on tap to perform include Taylor Swift, Toby Keith, Tim McGraw, Rascal Flatts and Sugarland.

Fresh from her Hannah Montana movie premiere, Miley Cyrus will take the ACM stage to perform “The Climb,” a tune from the film.

“[The song] has a little country vibe, the pop star tells PEOPLE. At the ACMs, it’ll be cool.”

Hosted for the eleventh time by Reba McEntire, who will perform her new single “Strange,” the show will also feature plenty of Hollywood wattage, including Matthew McConaughey, Jennifer Love Hewitt and Jamie Foxx.

Paisley – an early winner who already nabbed two of the six awards he’s up for – will compete for his third consecutive male vocalist award from home: He and wife Kimberly Williams-Paisley are expecting their second child any day.

With reporting by JESSICA HERNDON

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