Mother Monster not only sat shotgun in a new edition of "Carpool Karaoke" -- she even took a spin in the driver's seat!

Lady Gaga was the guest of honor on Tuesday's episode of "The Late Late Show with James Corden," where she became the first star to also get behind the wheel during the viral segment.

After chatting about recently getting her driver's license, James Corden let Gags take control ... and man, was the host nervous. At one point, he even put on a helmet as she drove around the streets of Los Angeles.

While out on their road adventure, they two rocked out to "Perfect Illusion," "Bad Romance," "Born This Way" and "The Edge of Glory" ... and even acted out the phone call between Gaga and the NFL when they offered her the Super Bowl.

As for the segment's most random moment, that has to be when the two started singing O-Town's "Liquid Dreams."

The clip ended with Corden trying on a number of Gaga's craziest outfits, including her police tape getup from the "Telephone" video and the VMA meat dress.

"The good thing with this one, is you've always got a snack," Corden said of her infamous look.

Check out the full video above -- how do you think she did?

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