Sunday and Levi? What's with these wacky celeb baby names?

Fruit. Days of the week. Biblical characters.

What the hey is going on with all these strange celebrity baby names?

The latest unusual celeb baby monikers are Matthew McConaughey's son, Levi, and Nicole Kidman and Keith Urban's daughter, Sunday Rose.

Levi is, according to the gospel of McConaughey, a biblical name and another name for the apostle, Matthew. Whew. Because for a minute there, I thought he'd named his son after his favorite pair of jeans.

The mystery of Sunday's name has now been solved by Kidman's dad's admission to the Sydney Daily Telegraph.

Brad_pitt_zarahajoliepitt___paxApparently, Sunday is the name of a famous muse (Sunday Reed) to one of Nicole's favorite artists, Sidney Nolan.

Kidman's dad, Dr. Antony Kidman, explains to the paper, "The name struck me as being a nice name for a woman, so my wife and I mentioned it." He added: "It was among other names being mentioned, but they decided that was the name they wanted."

Reed was a leading figure in Australia's early 20th century art scene, and she spent the '30s in a love triangle with her arts patron husband, John, and the painter Nolan.

Yikes. OK, that's not exactly something you want to explain to your young daughter.

Let's hope they wait until she's older before they go into the sordid details of her namesake.

Time for a look back at some other amusing and potentially emotionally scarring celebrity spawn names.

In comparison to some of these past whoppers, Sunday and Levi sound positively normal. Well, almost.

Pick your favorite! And the worst!

Katie Holmes and Tom Cruise's daughter, Suri.

Richard Gere's son, Homer.

Julia Roberts daughter, Hazel, and son, Phinnaeus.

Jennifer Lopez and Marc Anthony's twins, Max and Emme.

Courteney Cox Arquette and David Arquette's daughter, Coco.

Jada Pinkett-Smith and Will Smith's daughter, Willow, and son, Jayden. Another son boringly named Will Jr.

Rachel Griffiths' son, Banjo. Which always make me think of the film, "Deliverance" and that banjo pickin' mountain inbred. Sorry, can't help it.

Brad Pitt and Angelina Jolie's kids, Zahara, Maddox, Shiloh and Pax and gosh only knows what the next two names will be.

Keep reading. There's so many more...