She boasts a fan base in the tens of millions, has been one of the world’s most recognizable women for the past two years, and has managed to avoid any major scandals or controversies. Yet, even Taylor Swift isn’t immune to an unexpected wave of boos.

During last night’s Super Bowl LIX between the Philadelphia Eagles and the Kansas City Chiefs, Swift appeared to be minding her own business when the crowd suddenly turned against her. While at Caesars Superdome in New Orleans to cheer on her boyfriend, Chiefs star Travis Kelce, she seemed to mouth “What is going on?” to her friend and fellow artist Ice Spice.

The booing erupted when the stadium cameras zoomed in on Swift, displaying her on the big screen in front of the 75,000-strong audience.

Naturally, Swift seemed just as surprised as everyone else, leaving many to wonder: what sparked the reaction in the first place?

As expected in today’s social media age, the incident quickly became a hot topic online. Within moments of the clip surfacing, fans on X were dissecting what had happened.

“Eagles fans are booing her. She’s originally from the Philly area but obviously rooting for Travis and the Chiefs,” one user explained.

Another added: “The boos are from Eagles fans—aka the opposing team’s supporters. This is normal.”

A third simply said: “It’s the Eagles fans.”