What some people see as a "sneer", others just see as being 'into' the music. A lot of musicians effect facial expressions while performing; they're just feeling the music, not trying to project an image (ever watch B.B. King?). I think we're getting way to picky about things that have little to do with talent. In general, the 'get off my lawn' crowd tends to be overly critical of their younger counterparts (as though we weren't exactly the same when we were their age ). She's cute AND she's talented; that's more than most of US can say. JMO.

chas