"I'm absolutely rooting for the Packers," the long-legged actress and Dancing With the Stars alum tells PEOPLE. "But let's be honest, I know nothing about Green Bay ... but it doesn't matter to me, because I hate the Steelers."
For Keibler, 31, her open disdain towards all things black and gold goes further than just being a Baltimore native and a Ravens season ticket holder.
When she was only 18, Keibler whet her appetite for the spotlight as a Ravens' cheerleader – and recalls that even in the confines of her team's home stadium, the presence of die-hard Pittsburgh rooters was too much.
"Ravens-Steelers games were always intense, but I have a bone to pick with the Steeler fans," she said during last week's 1154 LILL Studio "Clutches for a Cause" event. "It's a personal vendetta, because they would drive to our stadium and they would scream so loud during our end-zone dance routines that we couldn't even hear the music!"
Detailing the results of their actions, Keibler said, "We would miss steps, and not one of us knew what we were doing because we couldn't hear the music!"
Surely, Keibler's cheers will be most audible should the Packers be victorious.