I have been a fan of The Expanders of Los Angeles for many years. I first saw them play in Hermosa at Saint Rocke back in April of 2011 and have basically loved them ever since.
They've got a vintage reggae sound and this tune was a really big hit for them. It's titled "Something Wrong" off their incredible self titled album. I have a bunch of favrotes off the album like "Snow Beast" and "Turtle Race." Check out the album and their others when you get a moment, I promise you wont regret it.
Enjoy!