Jeff Gordon swings by 'American Idol' to offer special invitation

Jeff Gordon made a pit stop by FOX's "American Idol" on Thursday night.

The driver of the No. 24 joined the show to present the Idols with a very special invitation ... the chance to sing the National Anthem before Sunday's Auto Club 400 at Auto Club Speedway in Fontana. 

Here's a behind-the-scenes look at his night.