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As the android Data on "Star Trek: The Next Generation," Brent Spiner can trace his musical lineage even more directly to Captain Kirk. On his 1991 album, "Ol' Yellow Eyes Is Back," Spiner interprets pop standards like "Embraceable You" and Cyndi Lauper's "Time After Time."

You never know who will make it on the Billboard charts. David Hasselhoff — who is now legendary in the United States for being a legend in Germany and a has-been at home — parlayed his "Baywatch" fame into a multiplatinum recording career.

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Historians will note that on New Year's Eve in 1989, when the Berlin Wall fell, Germans at their reunification celebration were singing Hasselhoff's No. 1 hit, "Looking for Freedom."

Hasselhoff even headlined a show from atop the wall to mark the occasion — and was so hot, he was voted "Most Popular and Best Selling Artist of the Year," beating out Madonna and Michael Jackson.

Hasselhoff was such a phenomenal success, even KITT, the super-intelligent talking sports car from "Knight Rider," began looking into a record deal.

In fact, I wouldn't be surprised if Hasselhoff and KITT teamed up for a duet on Sunday's "Emmy Idol." They've both got great pipes.

Buck Wolf is entertainment producer at ABCNEWS.com. "The Wolf Files" is published Tuesdays.