Kalel first entered the US Top 1000 as a one-off appearance in 2009. It reentered in 2013, where it's stayed ever since. It's possible that some parents see it as a spelling variant of the classic Arabic name Khalil, meaning friend. Or maybe some—Nicolas Cage, we're looking at you—were inspired by the birth name of Clark Kent, AKA Superman, Kal-El. Cage was long associated with attempts to remake a big screen story about the Man of Steel. He and wife Alice Kim gave the name to their son in 2005.
According to an episode of Smallville, Kal-El means "star child."