It would be fiesta enough for the Los Angeles cumbia/hip-hop/dance band Ozomatli to headline a show on New Year’s Eve. But throw in high-energy openers La Santa Cecilia, and you’ve entered maximum party mode. On top of that, add famously “fluffy” comedian Gabriel Iglesias? You’re starting to build the party of the year, right there. It all happens en la casa on Saturday, Dec. 31, at the Uptown Theatre. 1350 Third St., Napa. 9pm. $75—$85. 707.259.0123.