Jennings and Nelson are two of the most famous names in country music. You know the fathers, Waylon and Willie, but you should also know the sons, Shooter Jennings and Lukas Nelson, who have carved out prolific musical careers of their own. They appear together this weekend. Shooter recently expanded his musical palette, experimenting with psychedelic rock, and this year he offered up a tribute album to Italian producer and electronica pioneer Giorgio Moroder. Lukas still leads his popular band, Promise of the Real, and has a forthcoming album, Something Real. Check them out Sunday, March 6, at Uptown Theatre, 1350 Third St., Napa. 8pm. $20–$40. 707.259.0123.