We didn't know this is what Eminem had in mind when he came on board to executive produce the halftime show of the Detroit Lions Thanksgiving Day game.

The superstar rapper popped up in the middle of Jack White's halftime performance during Thursday's Lions game at Ford Field. The surprise collaboration — the first ever on-stage pairing of the two Rock and Roll Hall of Famers — electrified the live audience inside the stadium and stunned viewers at home as they grazed on Thanksgiving appetizers. (Watch video of the full performance here .)

Eminem was brought to the stage by White, who introduced "Detroit's own Eminem!" as the opening "left, right, left" chant from Em's "Till I Collapse" rang out across the stadium. Eminem then appeared on a riser from below the stage and joined White

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