<Li> Jet Black (album), an album by Gentleman Reg . </Li> <Li> Jet Black (Cowboy Bebop), a character from the anime Cowboy Bebop </Li> <Li> Jet Black (Viewtiful Joe), a character from the video game series Viewtiful Joe </Li> <Li> "Jet black", a color option available for the iPhone 7, released in 2016 </Li>

Where does the phrase jet black come from