There were plenty of pregame celebrations amongst Cowboys fans long before Dallas dominated the Cleveland Browns in their season-opening 33-17 win on Sunday.

As the wives of Cowboys stars Zack Martin, Dakoda Shepley and DeMarcus Lawrence got glammed up for kickoff with celebrity makeup artist Allison Kaye, news broke of Dak Prescott’s monster $240 million contract extension, to which the trio of Morgan Martin, Sloan Shepley and Sasha Lawrence celebrated with a congratulatory FaceTime call to the quarterback’s biggest supporter: girlfriend Sarah Jane Ramos.

“The girls I was glamming got word about Dak’s extension while they were in my chair. They were freaking out, so excited and so happy for him and FaceTimed Sarah Jane immediately to celebrate the news,” Kaye exclusively told The Post.

5Celebrity makeup artist Allison Kaye created glamorous looks for Cowboys WAGs ahead of the team’s season opener, including Sloan Shepley, the wife of offensive tackle Dakoda Shepley.Courtesy of Allison Kaye5Kaye also worked with Sasha Lawrence, who is married to Dallas defensive end DeMarcus Lawrence.Courtesy of Allison Kaye5

“It was so nice to see how happy they were and it made them even more excited for the game.”

For the Cowboys’ opener in Cleveland, Kaye — who has curated stunning game-day looks for the wives of Chiefs stars, “Bachelor” alum Hannah Ann Sluss and more — used Beauty Pie SPF, moisturizer and a lip mask “to prep the girls’ skin” before applying mascara, eyeshadows, lip products and setting spray from L.A. Girl cosmetics to create “a long-lasting game-day look.”

“The girls looked amazing,” gushed Kaye, who said the ladies “were customizing” ensembles with their husbands’ jersey numbers.

“They were saying, ‘This is going to be the best game ever!’”

5Dak Prescott with girlfriend Sarah Jane Ramos.Sarah Jane/Instagram

It was quite the day for the Cowboys, who agreed to the extension with Prescott, 31, hours before kickoff, making him the highest-paid player in league history on a deal boasting $231 million in guaranteed money.

For Prescott, now entering his ninth year in Dallas, it’s all about capturing a Super Bowl after falling short in the playoffs in previous years.

5Dak Prescott and the Cowboys topped the Browns in Week 1.AP

“That’s my only motivation to hold up my part of this deal and just deliver that,” the three-time Pro Bowler said. “That’s what is at the forefront of my mind, not the money. It’s about holding up my end of the deal and it’s winning, and I want to do it here.”