Their dad (in Matt's case, uncle) and grandfather were both named Leon. Their mother/aunt refers to them as her 'kings' - however that could be one reason.
Caleb Followill.
Matthew followill
Caleb Followill
If you mean the name of the band they actually named it after their father (Ivan Leon) and their grandfather (Leon).
kings of leon
only by the night
It's @doctorfollowill
Kings of Leon.
They are from Nashville, Tennessee. However, Nathan and Matthew were born in Oklahoma and Caleb and Jared were born in Tennessee.
aha shake heartbreak
There are no songs by Kings Of Leon in Twilight.
The Kings Of Leon are Christian-Protestants from Tennesee-USA