Ariana Grande and Nathan Sykes
We're pretty convinced that Ariana Grande and The Wanted's Nathan Sykes started dating after collaborating on their single, "Almost Is Never Enough." That's proof that good music and good chemistry go hand-in-hand, you know?
Chris Brown and Rihanna
Say what you will about Chris Brown and Rihanna as a couple, but when these two make music together, it's magical. "Birthday Cake" never gets old.
Jordin Sparks and Jason Derulo
Jason Derulo wrote his latest single, "Marry Me," for his girlfriend Jordin Sparks, but even better? They both sing on his new song "Vertigo," a ballad about how much they love each other. Hashtag #aw.
Miranda Lambert and Blake Shelton
Miranda Lambert and Blake Shelton are country music's power couple of the decade, basically, so obviously they've come out with a few songs together over the course of their relationship. Good ones, too.
Disney’s Make a Change
In 2009, The Jonas Brothers did a song called "Make a Wave" with Miley, Demi and Selena to support an initiative Disney was promoting at the time. Also at the time? Nick was with Miley and then later with Selena, and Demi and Joe started up a fling a little while later. Poor Kevin.
Alicia Keys and Swizz Beatz
Alicia Keys has been featured on her husband's songs (like "International Party") and Swizz Beats has done a chorus or two on some of Alicia's tunes (like "Lover Man,") but no collaboration between these two is better than their son, Egypt. #truestory
Britney Spears and Justin Timberlake
And now, for a blast from the past, remember when Justin Timberlake and Britney Spears used to date and then came out with that song "What It's Like To Be Me?" Yeah, we're gonna need some more of that.
Avril Lavigne and Chad Kroeger
Avril Lavigne and Chad Kroeger surprised the world by getting married out of the blue this summer, but what's not surprising is that their brand spankin' new duet, "Let It Go" is amazing. And? It's a perfect mix of each of their sounds, too. Good work, guys.
Katy Perry and John Mayer
Katy Perry and John Mayer worked together on a song called "Who You Love" for his newest album, Paradise Valley, and it even features Katy's real-life giggle on the track. True love, people. True love.
Nicki Minaj and Drake
Ok fine, Nicki Minaj and Drake were never an actual couple, but they've both hinted before that they were hook-up partners at one point or another. They also hooked up on songs like "Moment 4 Life," "Up All Night" and more.
Beyonce and Jay Z
And last but not least, ladies and gentlemen, the king and queen of music in general—Bey and Jay. Beyonce and Jay Z have been together for over a decade and have too many songs together to mention. Well, except we need to mention "Crazy in Love" because that one's the best. Ever.