The summer of 2007 seemed to be the season for joint mega concerts in Spain. What Serrat y Sabina did for the songwriter genre, Argentine rock legend Andrés Calamaro and Spanish multi-seller rock act Fito & Fitipaldis set out to do for rock en español. The tour played four stadium dates in July, for three to four hours each, starting with both musicians sharing the stage and singing each other's songs, then moving up to extended solo sets, and then joining up for the big finale. Of course, such tours are the perfect excuse to feed the new craze for CD/DVD releases -- hence, a few months later this 2 Son Multitud three-disc set, consisting of one CD and two DVDs. The hourlong CD contains only 13 tracks, which seems a rather scant sampler from such an extended concert. Seven are Calamaro songs (incontestably the biggest name of the two, particularly with Latin American audiences), and the remaining six are by Fito & Fitipaldis. Most selections, understandably, come from the section when both artists perform some of their better-known hits together. Fito Cabrales' Knopfler-esque guitar remains the big star in their tracks, but unfortunately Calamaro's songs are not revisited in a new light. As a result, most of the tracks sound fairly similar to the studio versions. In sum, while this album offers no revelations, it remains a fine souvenir of a great rocking concert.