Salsa legends and reggaeton stars marrying their two styles? Sounds like a fascinating experiment that could easily wind up feeling forced. But this 2006 comp comes off like a fun, effortless gathering of artists who truly admire what each other does. There are some mind-blowing duets here: Tego Calderon with Victor Manuelle? Gilberto Santa Rosa and Don Omar?! Elsewhere, one genre dances in the other’s shoes, like J-King and Maximan’s lightly salsa-drizzled dembow. The best track is also the sweetest: a fiercely fun duet between El Gran Combo’s Papa Rosario and his (singing, rapping) son.