Riley -- one of the most popular unisex names -- is trendier now for girls though for boys it's a classic, ALWAYS ranking in the US Top 1000.

Knox is an old Scottish surname that Brad Pitt (whose great-great-grandfather was named Hal Knox Hillhouse) and Angelina Jolie took out of the back cupboard, dusted off, and elevated to coolness--to the point where it entered the popular baby names list in 2009. Knox now ranks among the most influential celebrity baby names.

Crew is yet another word name that was added to the baby name lexicon when this one was chosen by The Young and the Restless star Joshua Morrow for his son. It debuted on the Top 1000 in 2010. We've also heard spelling variations Cru and Crue.

While the most famous Dusty, Dusty Springfield, might be female, Dusty as a boys' name is derived directly from Dustin. And there are about twice as many baby boys named Dusty as baby girls -- 33 to 14 last year, so a fairly rare name for either sex.

Gatlin has risen into the Top 1000 in recent years on the strength of its association with the Olympic champion sprinter Justin Galtin as well as the Gatlin Brothers of Nashville fame. The name has the same root as gadabout, thus the meaning related to wandering.