There were two music award shows on Sunday night -- the 2016 Academy of Country Music Awards, and the iHeartRadio Music Awards -- but with pop stars hitting up the former and vice versa for the latter, you might have forgotten which show you were watching if you weren't careful.
2016 is a beautiful time when people can step outside of their comfort zones. Usually it works, but sometimes it doesn't, which is even better.
Here are six crossovers from the night that we absolutely loved, for a variety of different reasons.
Despite winning a Milestone Award during last year's 50th anniversary ACM Awards, had Taylor Swift made the trip to Las Vegas this time around, it would have felt like a genuine crossover appearance for the "Bad Blood" singer, whose 1989 album literally dominated the pop world.
The pop star went on to win Album of the Year at the iHeartRadio Awards, as well as Female Artist of the year, and pretty much owned the night.
"I want to thank all the radio stations who played the songs off of 1989," Swift said in her acceptance speech for Album of the Year. "I never dreamed of having that many number ones. Thank you for liking and listening to my songs on the radio, that’s really nice."
The country community was very welcoming to the "California Gurls" singer, who honored Parton with the Tex Ritter Award for her movie Dolly Parton's Coat of Many Colors before the two teamed up for a medley duet performance of some of the country legend's standards, including "Jolene" and "9 to 5."
Not gonna lie, we were scared. Katy Perry came out looking like a country cartoon and kicked things off with a Southern accent, but somehow it wound up being a refreshingly touching tribute to the Queen of Country Music.
"I recently tweeted that I was but just one tiny sequin on Dolly Parton's gown. I think I'll say, though, maybe we're kind of cut from the same lamé, because her grandpa was a preacher, my father's a preacher; we both grew up singing and playing guitar in church; and we're both know for some of the biggest ... songs in our fields," joked Katy to laughter from the audience, referencing both her and Parton's well-known bustier frames.
We don't fully understand how this came to be, but what we got was our new favorite BFF story, and really, what more can you ask of a crossover than that?
Not in attendance at the ACM Awards was the country crooner, who backed the Confident singer on guitar as she continued her streak of killing it in musical performances while playing her new single, "Stone Cold."
"Demi Lovato just sang her ass off, so there's that," Justin Timberlake said after her performance, before presenting Best Tour to Taylor Swift.
Which reminds us...
4. Justin Timberlake Is a 'Traveller' For His Buddy Chris Stapleton
We were honestly a little surprised to see JT at iHeartRadio and not the ACM Awards, where his "Traveller" singer buddy was cleaning up, taking home four awards, including Album of the Year.
However, as it turns out, Timberlake must have hopped right on a plane to go from Los Angeles to Vegas' MGM Grand (where the ACMs were being held), because we spotted the singer backstage after the show wearing a low-key baseball hat.
Not only is that true friendship, but the 20/20 Experience singer literally crossed over to make the trip.