Well, the energy in one way propels this CD, and unfortunately flaws it at the same time.  A whole lot of the energy comes from the audience which is great, but I don't quite believe that the response of a MTV audience to a 50's type singer was really all that great.  Either there were prompters hyping the kids up, or the volume was enhanced.  It does flaw the record.  And while it's great that Tony Bennett appreciates the various new waves of music that have appeared since his beginnings, I must go along with those who feel that k.d. lang and Elvis Costello were mismatches for Bennett.  Again, those two generate energy, but not, IMHO, completely the most appropriate energy for this CD.