i just saw the photos on CMT and had to check the you tube for clips. And kinda make me wonder if will they be going to a more pop country direction since the band admits they like nashville music a lot.
people also criticize them for being a pogi rockstars or boybands or not real musicians and mostly based on the fact that more teenage girls attend their concert not exactly to hear or appreciate the band but to gaze at their cute little faces.
But behind the strong disney marketing approach, these brothers are really artists. they write their own songs and play their instruments (the guy in tambourine actually played most of the instrument in the studio). and they also pulled some unexpected covers. fans or critics might expect them to cover some backstreet boys or nsync but instead they cover songs from creedence clearwater revival, the band, steven curtis chapman, michael w smith, johnny cash, etc...
in that particular concert too guests includes Vince Gill (who is a very respected musician in the americana, bluegrass, and nashville pop country scene, few artists could do that nowadas. they either praise in the other and criticized in the opposite end), his wife Amy Grant, Steven Curtis Chapman, Phil Vassar, Michael W. Smith, Brad Paisley, Tim McGraw, Faith Hill, Jordin Sparks (Michael W. Smith's back up singer who is now also releasing an album surprisingly under RCA).