Lil Nas X and Billy Ray Cyrus are doing more than defying Billboard's rules; they're also having people reminisce about an old collaboration with Nelly and Tim McGraw.

Over a week ago, Billboard removed Lil Nas X's "Old Town Road" from its Hot Country Songs chart, citing that "it does not embrace enough elements of today’s country music to chart in its current version," as Blavity reported.

On Thursday, Lil Nas X reassured us that he's not taking the challenge lightly. After Billy Ray Cyrus tweeted his support to the young Atlanta country rapper, he incited the help of social media to secure a collaboration with the "Achy Breaky Heart" country legend.

.@LilNasX Been watching everything going on with OTR. When I got thrown off the charts, Waylon Jennings said to me “Take this as a compliment” means you’re doing something great! Only Outlaws are outlawed. Welcome to the club!

— Billy Ray Cyrus (@billyraycyrus) April 3, 2019

BILLY FUCKIN RAY!!! ????⚡️

A post shared by Lil Nas X (@lilnasx) on Apr 4, 2019 at 6:57pm PDT

Lil Nas X confirmed with Time that he considers his song to be of the blended genre. “The song is country trap,” he said. “It’s not one, it’s not the other. It’s both. It should be on both.”

As Blavity detailed, the duo released their song to much praise and excitement. Many are questioning what Billboard will do now that the two genres "outlaws" have teamed up.

your move billboard https://t.co/pE0qqWD5OR

— alex medina (@mrmedina) April 5, 2019

I’m living for this chart trolling that @LilNasX and @billyraycyrus just did Not country enough? Do the same EXACT song but add a country legend… Your move @billboard. How bout now y’all? #CountryTrap
pic.twitter.com/X9TSvk9xa6

— Brian Moote (@MootePoints) April 5, 2019

As people shared the new song, pretending to own cowboy hats and a horse, they also remembered one unforgettable country-rap duo: Nelly and Tim McGraw.

Nelly and Tim McGraw walked so lil nas X and billy Ray Cyrus could run ????????

— Jose Govea (@josegovea_) April 5, 2019

The 2004 collaboration between the two, "Over and Over," came at a time when Nelly had established himself as a rapper but was just beginning to explore his country roots. McGraw, already a legend, was also sought out by Nelly.

"So he'd written this song and the first thing Nelly did was tell his manager to call me," McGraw told MTV News in 2004 about the unexpected collaboration. "If you know Nelly, he's such a great guy, I couldn't wait to work with him."

"I get in there and say, 'It ain't nothin' country about this song,'" McGraw added. "But it was fun to get in there and sing with him. People are really liking the song, so we'll see what happens."

The song would be labeled both pop and country rap, but it appears Billboard didn't consider it country then, either. The country rap song wasn't the first of its kind, but it was the one we hold near and dear.

The actual originator of the musical genre is debatable; some credit the early 1900s artist Woody Guthrie, but Kid Rock's "Cowboy" is among the first to be officially credited. Nelly, Bubba Sparxxx and Young Thug are among the most popular artists believed to have expanded the genre, as well.

"Over and Over" hit No. 1 on U.S. Billboard Hot 100, peaked on over 10 international music charts and went platinum in the U.S. and double platinum in Australia.

The memory is making Twitter fall for the sweet smell of old facial bandages over and over again.

Before Billy Ray Cyrus there was Nelly and Tim McGraw "Over and Over"pic.twitter.com/avjkW9SKap

— Souf Sil Fa Lil ???? (@Nicktheegr8) April 5, 2019

I already got a whole treatment in my head for the video to the “Old Town Road (Remix).” Lol There’s a scene in there where Kenny Rogers, Nelly, Tim McGraw, Pharrell and Blake Shelton are playing poker.

— Cousin Carl (@carlchery) April 5, 2019

So we gon act like Nelly and Tim McGraw ain’t have everybody and they momma goin

“Cuz it’s all in MY heaaaaad I think about it over and over agaiiiin” pic.twitter.com/H0NSkbPqmj

— Dooley Hendrix (@DooGimmicks) April 5, 2019

Nelly and Tim McGraw Yee’d so this bop could Haw???????????? https://t.co/AlnQIJJeCh

— Zamalisa ✨ (@Zamalisa) April 5, 2019

Y’all act like this is the first country/hip-hop mashup you ever heard like Nelly and Tim McGraw don’t exist

— Father Willis (@AnthoneWillis) April 5, 2019

IWalked away from Twitter for a couple hours, and Billy Ray Cyrus and Nelly are trending. Now I'm listening to Country Grammar and Achey Breaky Heart for the rest of the da'm y pic.twitter.com/pCu2EvbM4j

— donna marbury (@DonnaMarbury) April 5, 2019

Lil Nas X and Billy Ray Cyrus are the best rap/country collab since Nelly and Tim McGraw…they did NOT have to go this hard but I’m thankful they did

— mcbean (@beanythegreat) April 5, 2019

Nelly was robbed of his #1 … they felt it “wasn’t country” It makes me SO happy knowing that as soon as they were about to rob Lil Nas X of the same thing, Billy Ray Cyrus shut them all the fuck up! I knew there was a reason I’ve always had respect for Robby Ray Stewart!! ???????????? https://t.co/CuUaxn3yil

— J O R I A ???? (@jorialajoy) April 5, 2019

When the music hits, it just hits.

Now, check these out:

Social Media Rallies Behind Rapper After Billboard Removes His Rising Song From Their Country Music Chart

Rapper Lil Nas X, Whose Song Was Kicked Off The Billboard Country Charts, Just Remixed His Hit With Billy Ray Cyrus

Someone Came For Oprah On Instagram So She Politely Let Them Know She Didn't Send For Them

Tim McGraw

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