I guess these bros were popular

I'm into album covers where the people posing don't give a shit.  It started off with some Ray Price album covers and yesterday I found these.  I have never heard of these brothers and apparently at one time they were more popular than Engelbert Humperdinck.

Here we go!

Can you see any familial traits?

They have me convinced that the sun will not shine anymore

They had enough songs for a collection, yet are still unfazed

The brothers don't seem to make it easy on themselves

They had hits, but remain unsatisfied.

You don't have to do anything we will psychedelic you up

Just hold this, throw these on and be you.

It's about time! This is the best one!  Cheers Bros!