Kevin Bacon, Kyra Sedgwick: Distant Cousins

Kevin Bacon and Kyra Sedgwick are cousins! Well, not really: Hollywood's poster children for marriage success -- we're counting 23 years -- discovered they were distant relatives on the PBS ancestry show, "Finding Your Roots." (Insert mandatory "six degrees of separation" jokes here.)

The relation may have come as a surprise to the "Footloose" actor and his "Closer" star wife, but marrying your first or second cousin wasn't anything to raise your eyebrows at just decades ago. In fact, consanguineous relationships are still allowed in a handful of states, including California, New Jersey, New York and Virginia. Surprised? Check out our gallery below of other famous people who have kept their nuptials all in the family, and sound off in the comments on anyone we may have missed.

SLIDESHOW: Celebrities who have married their cousins