It's almost that time a year again!

The biggest stars in country music are headed to Las Vegas for the 54th annual Academy of Country Music Awards, where icon Reba McEntire is set to host the show for the sixteenth time.

The ceremony, which will be broadcast live from the MGM Grand Garden Arena in Las Vegas, is known for its signature hat trophy—not to be confused with the hat Pharrell Williamsfamously wore to the 2014 Grammy Awards.  Think Taylor Swift pre-1989, or Dolly Parton during her "Jolene" era.

Needless to say, the world is an entirely different place since the ACM's first started handing hats out in 1968. Looking back even ten years ago, the country music community has come a long way.  

A decade ago, Carrie Underwood had taken home the ACM's biggest prize of Entertainer of the Year to secure country music's prestigious Triple-Crown Award. In comparison, Swift had won Album of the Year for her chart-topping second studio album Fearless while Luke Bryan wouldn't win Top New Artist until a year later.

Bryan as a new artist? Swift as a country singer? Oh, what a different time that was.  

Today, Swift is now one of the biggest pop stars on the planet. And, at this year's ceremony, Underwood is up against breakout star Kacey Musgraves for Female Artist of the Year, while Bryan will take on Chris Stapleton to see who will win Male Artist of the Year.

But, no matter how much country music changes, one thing will always stay the same—Reba!

In anticipation for Sunday's show, let's put on our boots and take a walk down memory lane as we recount what the ACMs looked like a decade ago in our gallery below

Nicole Kidman, Keith Urban, Academy Of Country Music Awards, ACM, 2009

Jason Merritt/Getty Images

Matthew McConaughey, Reba McEntire, 2009 ACM, 2009 Academy of Country Music Awards

Ethan Miller/ Getty images

Julianne Hough, Academy Of Country Music Awards, ACM, 2009

Jason Merritt/Getty Images

Carrie Underwood, 2009 ACM, 2009 Academy of Country Music Awards

Ethan Miller/ Getty images

Taylor Swift, Academy of Country Music Awards, ACM, 2009

Jason Merritt/Getty Images

Miranda Lambert, 2009 ACM, 2009 Academy of Country Music Awards

Ethan Miller/ Getty images

Scott Borchetta, Taylor Swift, 2009 ACM, 2009 Academy of Country Music Awards

Ethan Miller/ Getty images

Marisa Miller, Academy Of Country Music Awards, ACM, 2009

Jason Merritt/Getty Images

Carrie Underwood, 2009 ACM, 2009 Academy of Country Music Awards

Ethan Miller/ Getty images

Sugarland, 2009 ACM, 2009 Academy of Country Music Awards

Ethan Miller/ Getty images

Reba McEntire, 2009 ACM, 2009 Academy of Country Music Awards

Ethan Miller/ Getty images

LeAnn Rimes, Academy Of Country Music Awards, ACM, 2009

Jason Merritt/Getty Images

Kaley Cuoco, 2009 ACM, 2009 Academy of Country Music Awards

Ethan Miller/ Getty images

Miley Cyrus, 2009 ACM, 2009 Academy of Country Music Awards

Ethan Miller/ Getty images

Luke Bryan, Academy of Country Music Awards, ACM, 2009

Jon Kopaloff/FilmMagic

The 2019 Academy of Country Music Awards airs Sunday night at 8 p.m. only on CBS.

Don't miss E! News every weeknight at 7, only on E!

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