The No Doubt frontwoman shared a pic on Twitter that showed the Voice couple in a car with pals. Stefani, 46, wore a Cardinals cap and her trademark red lips, while the country singer donned a team sweatshirt.
"#football @AZCardinals @blakeshelton Eeeeeekkkkk! @NFL," the mom of three wrote.
The Cardinals — Shelton's favorite team — were playing the Green Bay Packers at the University of Phoenix stadium in Glendale, Arizona, on Sunday.
— Gwen Stefani (@gwenstefani) December 27, 2015
Comedian David Spade also posted a pic on Instagram after meeting up with the pair at the stadium, and Stefani shared a video from the sidelines. The Cardinals also shared a pic on Twitter of the couple taking a selfie.
The football game is the latest sighting of the new couple, who were spotted shopping in Oklahoma near Shelton's ranch a couple of days before Christmas.
— Arizona Cardinals (@AZCardinals) December 27, 2015
Us Weekly broke the news in November that the Voice coaches were dating. Shelton, 39, divorced fellow country superstar Miranda Lambert in July after four years of marriage, while Stefani and husband of 13 years Gavin Rossdale split in August.
The "Used to Love You" singer also shared an adorable video on December 21 that showed Shelton giving her several sweet kisses on the cheek.
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