Aside from music, movies and money, the entertainment industry is propelled by the moving wheel of the rumor mill. Who's dating who? Who's having a baby? Who's beefing? All these questions and more find answers when the chatter of the peanut gallery builds to a roar. And in 2015, hip-hop rumors were out of control. But who doesn't love a little bit of rap gossip?

This year's best rumors had to do with the likes of Jay Z, Nicki Minaj, Kanye West and Drake, to name a few. Some of these rumors, like the notion that Jay Z once had a fling with his Roc Nation signee Rihanna, were years in the making. Others, like the rumor that rap couple Nicki Minaj and Meek Mill are engaged were quickly dispelled with a short Instagram post.

And still more, like the tidbit that Kanye and Drake were supposed to drop a project together -- an idea launched by Yeezy himself in an interview earlier this year -- are still very much up in the air. Either way, these half-truths kept the internet buzzing with speculation and our favorite rappers' names in the press. And in hip-hop, you never know what to believe until it comes from a rapper's mouth.

Here are the biggest hip-hop rumors sparked, fueled, flamed and extinguished in 2015.

More From XXL