Courtside queen!

The first game of the NBA finals is in the books, and the feud is officially on. No, not between Kevin Durant and LeBron James.

Instead, all eyes were on Rihanna during Thursday night's matchup. The “Love on the Brain” singer watched as her beloved Cleveland Cavaliers took on the Golden State Warriors at Oracle Arena in Oakland, CA.

MORE: Drake Is on His Worst Behavior, Rihanna Allegedly Says He Needs to "Grow Up!"

Yet the pop superstar had more to say than just, "Go team!"

NBA Twitter personality, Rob Perez said, "Listen: Rihanna yells "BRIIIIIICK!!!" at Durant during free throw, he stares her down twice."

Not one to let things slide, KD stared down Rihanna after making a three-pointer later in the game.

This isn't the first time the two have had beef. It appears their feud dates back to 2014.

MORE: Kim Kardashian, Scarlett Johansson, and More Stars You Forgot Made Music Video Cameos!

Naturally, Durant was asked about the incidents after the game and conveniently stated he didn't know what the reporter was referring to.

Unfortunately for the singer, the Cavaliers fell to the Warriors 91 to 113. After the game, she was heckled by some Warriors fans about her team’s loss. “It doesn’t matter, b-tch,” she shot back.

https://twitter.com/dydyklay/status/870495470992318465

Tell 'em, girl!

It'll be interesting to see if Rihanna makes it to any more of the finals games — and if Kevin will be throwing any more glares.

Dare we say, Riri was the game's MVP?

Only $12! — (And No One Will Know They Aren’t Designer)

Deal of the Day

Only $12! — (And No One Will Know They Aren’t Designer) View Deal

More From In Touch

Brandy Rushed to Hospital After Being Found Unconscious on Flight (REPORT)

So Apparently Drake Was Just a "Booty Call" to Jennifer Lopez

Kelly Osbourne Defends Kathy Griffin Amid Donald Trump Controversy (EXCLUSIVE)

Have a tip? Send it to us! Email In Touch at contact@intouchweekly.com.