Comedian Kevin was on stage accepting his award for Favourite Comedy Performance in the film Central Intelligence when The Rock was caught swearing.
During his speech, the 37-year-old thanked all his co-stars apart from him and said: “So, this one goes to all the co-stars that I've had except for The Rock, because he hasn’t helped me.
“He hasn’t helped me at all. You’ve actually lessened my talent. It went down since you’ve been in my life.”
The camera then cut to the former WWE wrestler for a reaction shot, where he was then seen lifting his middle finger up to Kevin.
The Rock laughed at Kevin Hart's joke before swearing at him
CBS quickly switched cameras but the scene was spotted by those at home.
Later, The Rock won his own award for Favourite Premium Series Actor in TV series Ballers and got his own back on Kevin.
“It’s nice to be important, but it’s more important to be nice,” he said, before appearing to say: "Go f**k yourself."
The 44-year-old brought his daughter Simone Johnson to the award show at the Microsoft Theater in Los Angeles and gave her a shout-out from the stage: “I love you so much.”
The wrestler-turned-actor was named People’s magazine’s Sexiest Man Alive for 2016 at the end of last year.
Speaking about his new title, he explained: "I said, 'That’s awesome.' And then what went through my mind was just how cool and exciting it is.
Kevin Hart accepted an award for winning Favourite Comedy Performance
The Rock attended the event with his 15-year-old daughter Simone Johnson
The People's Choice Awards
Thu, January 19, 2017
Blake Lively, Gwen Stefani & Jennifer Lopez lead the best dressed list at the People's Choice Awards in LA.
1 of 15
Blake Lively, Gwen Stefani & Jennifer Lopez at the People's Choice Awards
"And then I thought, 'Wow, we’ve pretty much reached the pinnacle.' I’m not quite too sure where we go from here. I’ve done it all, this is it."
Elsewhere at the awards show, Blake Lively dazzled as she put on a very leggy display on the red carpet in a thigh skimming dress.
Jennifer Lopez was also seen posing up a storm as she flaunted her toned physique in a figure-hugging dress that clung to her enviable curves.
Blake Shelton took to the stage to perform and Fifth Harmony performed for the first time as a quartet.