Robert Downey Jr. and wife Susan Downey arrive at an awards ceremony on Oct. 30. Susan gave birth to a baby girl on Nov. 4.

Robert Downey Jr. used Facebook yesterday to announce the birth of his daughter, just like many normal parents do. But in a true celebrity move, he gave her a decidedly special-snowflake kind of name.

Downey’s third child, Avri Roel, joins siblings Indio Falconer and Exton Elias, and a bevy of other specially named star spawn, of whom Blue Ivy and North West are only the most recognizable. Can you remember which famous people gave their kids which super-unique name? Take our quiz!

1

Nicolas Cage is a longtime comic book obsessive, so he named his son after a character in the Superman universe.

Clark Kent
Jor-El
Kal-El

2

Gwen Stefani and Gavin Rossdale have three children together, all with unique monikers. Which name below is NOT one of their children's?

Hera Capri Shasta
Zuma Nesta Rock
Apollo Bowie Flynn

3

Sean Penn and Robin Wright named their first daughter Dylan Frances. What is their youngest daughter's name?

Cagney Hopper
Hopper Jack
Hopper Grant

4

Most famous for her role in "A Knight's Tale," Shannyn Sossamon got a lot of flack for giving her son this name.

Audio Tech
Audio Science
Lively Science

5

Ashlee Simpson and Pete Wentz may have only been married for a few years, but their son's name will live on in infamy.

Brooklyn Baloo
Bryant Bagheera
Bronx Mowgli

6

Here's a little ditty about John Mellencamp: His son has an odd name.

Speck Wildhorse
Rusty Roseland
Wick Rainfellow

7

Alicia Silverstone wrote a book, "The Kind Mama," about her naturalistic approach with her young son. What is his earthy name?

Fox Blu
Bean Blu
Bear Blu

8

"Numb3rs" cast member Rob Morrow is more famous for what he named his daughter than for his acting career.

Tu Morrow
Sweet Morrow
Bright Morrow

9

He does magic, but Penn Jillette's daughter's name is not so magical.

Pilot Inspektor
Moxie Crimefighter
Bandit Lee

10

The Edge has a signature hat, and his youngest daughter from his first marriage has a signature name.

Bluebell Madonna
Blue Ivy
Blue Angel

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