Tesla is a classic rock band with bluesy riffs. Guitarist is gifted and they've been rocking for 25 years and still tour (AWESOME at NH Casino this past May) with new material.
They work really hard and moreover really appreciate their fans. That they aren't in RB yet is a travesty! They own their own studio so they should be able to get their newer stuff in. Older stuff is still owned by Geffen, I think.