Guys are bringing up looking for the light. I just assume that's pretty obvious and didn't think to bring it up since the light constitutes your ATC clearance...
But yeah...look for the light, then do what ya need to do but you don't land without a clearance of some sort. Even if tower would say 100% of the time "yeah you saw the light, right?" after I land...I still wouldn't do it. There could be a billion reasons I didn't get a landing clearance yet and I don't know it until it's too late.
-mini