The American version's cover art of the same album to me looks like eagles (or some types of bird) making the shape of a butterfly with a black/white/red theme going on. [Both are MK anyway] The album includes tracks such as 17, Manhattan, and one with lyrics about being a vampire.
"Kings of Leon" is named after their father [programmer?] and grandfather's first name. All four of them have the same last name of Followill [You Will Follow The Yellow Brick Road!].
The album before "Only By The Night", "Because of The Times" also has mind control symbolism with an X-Ray of someone's head, and a shattering bulb [so shattered glass/mind combined with an actual head emphasizing the mind control].
The album before this one, "Aha Shake Heartbreak"; features orchids of varying types: In Greek mythology, Orchis was the son of a nymph and a satyr. During a celebratory feast for Bacchus [usually involves altered states of consciousness/animal alters/copious amounts of drugs... good stuff], Orchis committed the sacrilege of attempting to rape a priestess, resulting in his being torn apart by wild beasts, then metamorphosing into a slender and modest plant.
And their debut album simply has all four of their disembodied heads.
I'll leave you with their first #1 in the UK Sex On Fire (see the remixes in wiki...), note the one eyed shots etc, the overall feel of this is quite odd.
King of Leon, Alfonso X's Book of Games. [He was himself of course a pedophile... but what European Monarch isn't?! Marrying a 13 year old (with the relationship I'm assuming having continued long before that)... Edit: This one even says she was married at 10 years old... (which is a lot more likely to be accurate). The elite have always been, and will always be completely perverse maniacs until we REVOLT!!!!!! and physically remove them from their position of total control.]