I just got a Vox Ac15c1 the other day and I wanted to know how to sound like Caleb Followill from kings of leon. I have a Gibson Les Paul and a Vox AC15. For pedal i have a Ep booster and a blues driver.

First you want to select the bridge pickup, add a little reverb from the amp. The amp settings I'd go treble 2 o clock, mid 12 o clock, bass 11 o clock.

Then you want a little bit of grit from the amp, basically that Classic Vox sound. Maybe add the blues drive or Ep boost for heavy songs like don't matter, Molly chambers etc

It's actually quite straight forward.