Blake Shelton, Gwen Stefani and Her Boys Have Family Time at Super Bowl 2018

The 'Hollaback Girl' singer will perform at Club Nomadic at Mystic Lake Casino Hotel on Sunday night.

Gwen Stefani and Blake Shelton made Super Bowl LII a family affair!

The Voice coach and the 48-year-old singer, along with her sons Kingston, 11, Zuma, 9, Apollo, 3, made their way to the championship game between the New England Patriots and Philadelphia Eagles in Minneapolis, Minnesota, on Sunday.

The "Hollaback Girl" singer documented their fun football day on her Instagram Stories, sharing pictures and videos of their time together.

Gwen Stefani/Instagram

Stefani will be closing out the Super Bowl festivities by performing Sunday night at Club Nomadic at Mystic Lake Casino Hotel.

Prior to attending the game, she posted videos of her rehearsal on social media.

Meanwhile, a source recently told ET that Stefani "loves the influence Blake has on her kids."

"Blake introduces them to these down-home country things and Gwen and the kids love it. They all love going to Oklahoma and seeing the animals and doing fun things on his giant piece of land," the source shared. "Blake is very much a father figure to her kids. The kids are very mature and Blake treats them as such. He loves them so much, he's always talking about them."

Hear more of how their relationship is sizzling in the video below.