LONDON: Drew Barrymore has accepted a challenge to test her green driving skills on late-night TV in America.

The celebrity eco-warrior will go head-to-head with another Hollywood racer when comedian Jay Leno launches his Green Car Challenge during the first week of his new U.S. variety show The Jay Leno Show.

Leno tells news show Access Hollywood that the stars are lining up to get behind the wheel of a high-powered electric car, but Barrymore will be the first to try-out the track on 19 September.

Leno says, "The fun thing about it, there’s a lot of people... perhaps athletes and people like this who are not good talkers but would be fun in this sort of environment - to see if Shaquille O’Neal is faster than Cameron Diaz."

And there's one star the host can't wait to see behind the wheel: "Tom Cruise called and said, 'Can I get in early and practice?' I said, 'No, nobody gets to practice.'"