They are the only 4 bands in the grid - which makes the fact they have numbers in the name somewhat irrelevant…

Somewhat lacking in red herrings unless I missed them.
I'm still annoyed I didn't get what the tricky group was despite watching it all.

That's not how you write Marilyn Monroe, threw me for a loop cause I thought it was supposed to be a clue...

Please correct the spelling of Marilyn. The misspelling looks like there should be a hidden word there,and makes the actual group not a group any more, unless there actually was a person called Maralyn Monroe who died in 1962, which would be a huge coincidence.