Snippet:

“One moment where he certainly shamed nobody was his cover of Crossroads, grooving it up a bit more than Eric Clapton’s rendition yet still packing a punch. Here Mayer also seemed much looser, sounding like he came from the Chitlin’ Circuit as the boogie blues riffs garnered a surprisingly strong response.”

http://jam.canoe.ca/Music/Artists/M/Mayer_John/ConcertReviews/2009/11/25/11914896-sun.html?cid=rssentertainmentmusic

Snippet:

“And while that tightness was quite surprising considering he’s only done a few shows supporting his top-charting new album Battle Studies, Mayer and his band sounded like they were ready to record a live DVD on Tuesday night.”