New Music Tuesday: How does this happen?

This song caught my ear a few months ago:



It's nice.  It's a bit of an earworm, and I'd find myself humming the tune sometimes.  XMU has been playing it on regular rotation for the past, oh four months I'd say, at least.  So one day I got it stuck in my head and I wanted to hear it.  I looked it up on Spotify - no deal.  That's cool, not everyone wants their music on Spotify.  Then I checked Amazon to see if I could download a copy, and I did find it, but it was not to be released yet until July 23, a couple of weeks ago.  OK, so maybe I'll check their discog and find some old stuff I like, too.  Guess what?  It's their debut single.  On New Music Tuesday, July 23, 2013, they released a debut single with a b-side.

(I have to stop here and say yes, I did find it early on in the process on youtube, as well as their b-side, and I listened to them.  Please.  I'm an IT Professional.)

So my question is, how can a band who has not even released a single yet be getting constant airplay of their debut single for months on satellite radio?  Could someone please answer this for me?  How does this happen?

The boys are cute, but not THAT cute, and I find their psychedelic imagery on their video pretty derivative, but it's a great, catchy little song.  The only thing I could think of was that perhaps Temples was made up of members of other bands who had already made it on the 'indy' circuit, so I looked them up.  There's not much info out there about them, but no, they're a brand new band from the UK.  They formed and then added their drummer, who was formerly from the band The Hot Melts, another hard-rocking britpop group (which I tend to be a sucker for, btw).  Here goes The Hot Melts:



But, I don't really see where The Hot Melts took the world by enough storm to get Temples on XMU four months before their debut single was released.

For the record, my awesome band published our demo almost a year ago and I practically have to beg my best friends to listen to it.  None of whom are influential music people.  Anyway, don't get me wrong, I still like Shelter Song and now I like The Hot Melts too, but does anyone know how something like this happens?  How were they playing at a psych fest in London almost a year ago?  Anyone?

Anyway, here goes some sleaze rock awesomeness: