As the Chiefs take on the Eagles in Super Bowl LIX, Taylor Swift was in the box to support boyfriend and Chiefs TE Travis Kelce with a fabulous group.

Taylor Swift and Travis Kelce are "incredibly happy together," a source tells PEOPLE. The pop star and the athlete will "have a break together" now that the NFL season is over.

Swift kept it casual this year, wearing a white double-breasted Saint Laurent blazer, white tank top, sparkling denim shorts and thigh-high white boots. What really caught viewers’ attention, however, was her ruby “T” necklace.