If you take everything “cool” and infuse it into a single human being, you get one man: Dr. John. The legendary “Night Tripper” has played with Cher, Van Morrison, Aretha Franklin, the Rolling Stones, Eric Clapton, Mick Jagger—just to name a few. Quite fittingly, Dr. John’s unique musical style doesn’t fit under any one category, but is a type of hybrid voodoo-psychedelic-meets-traditional-New-Orleans-R&B-and-funk. Widely considered a living embodiment of the rich musical heritage of New Orleans, Dr. John proved his life-long love affair with his hometown by stepping up to the plate after Hurricane Katrina with generous relief fundraising concerts, recordings, angry words of protest and a Grammy-winning album, City That Care Forgot. Dr. John plays on Saturday, Sept. 21, at the Uptown Theatre. 1350 Third St., Napa. 8pm. $40—$55. 707.259.0123.