Question: What member of the Acoustic Warriors is from the fourth-most populous city in California?

Context paragraphs:
Champaign, Illinois: Champaign ( ) is a city in Champaign County, Illinois, United States.  The city is 135 mi south of Chicago, 124 mi west of Indianapolis, Indiana, and 178 mi northeast of St. Louis, Missouri.  The United States Census Bureau estimates the city was home to 84,513 people as of July 1, 2014.  Champaign is the tenth-most populous city in Illinois, and the state's fourth-most populous city outside of the Chicago metropolitan area.

Rome: Rome ( ; Italian: "Roma" ] , Latin: "Rōma" ) is the capital of Italy and a special comune (named "Comune di Roma Capitale").  Rome also serves as the capital of the Lazio region.  With 2,877,215 residents in 1285 km2 , it is also the country's most populated comune.  It is the fourth-most populous city in the European Union by population within city limits.  It is the center of the Metropolitan City of Rome, which has a population of 4.3 million residents.  Rome is located in the central-western portion of the Italian Peninsula, within Lazio (Latium), along the shores of the Tiber.  The Vatican City is an independent country inside the city boundaries of Rome, the only existing example of a country within a city: for this reason Rome has been often defined as capital of two states.

The Acoustic Warriors: The Acoustic Warriors was a band formed by San Francisco rhythm guitarist Dan Hicks in the early 1990s, to replace his reunited 1968-1973 offbeat psychedelic Bay Area group Dan Hicks & the Hot Licks (which never used electric instruments, and rarely drums).

San Francisco: San Francisco (initials SF) ( , Spanish for Saint Francis; Spanish: ] ), officially the City and County of San Francisco, is the cultural, commercial, and financial center of Northern California.  The consolidated city-county covers an area of about 47.9 sqmi at the north end of the San Francisco Peninsula in the San Francisco Bay Area.  It is the fourth-most populous city in California, and the 13th-most populous in the United States, with a 2016 census-estimated population of 870,887.  The population is projected to reach 1 million by 2033.

Houston: Houston ( ) is the most populous city in the U.S. state of Texas and the fourth-most populous city in the United States.  With a census-estimated 2016 population of 2.303 million within an area of 667 sqmi , it is also the largest city in the southern United States and the seat of Harris County.  Located in Southeast Texas near the Gulf of Mexico, it is the principal city of the Greater Houston metro area, which is the fifth-most populated MSA in the United States.

Maricopa County, Arizona: Maricopa County ( ) is a county in the south-central part of the U.S. state of Arizona.  As of the 2010 census, its population was 3,817,117, making it the state's most populous county, and the fourth-most populous in the United States.  It is more populous than 23 states.  The county seat is Phoenix, the state capital and fifth-most populous city in the country.

Jefferson County, Colorado: Jefferson County (Jeffco) is one of the 64 counties in the U.S. state of Colorado.  As of the 2010 census, the population was 534,543, making it the fourth-most populous county in Colorado.  The county seat is Golden, and the most populous city is Lakewood.

Buenos Aires: Buenos Aires ( or ; ] ) is the capital and most populous city of Argentina.  The city is located on the western shore of the estuary of the Río de la Plata, on the South American continent's southeastern coast.  "Buenos aires" can be translated as "fair winds" or "good airs", but the first one was the meaning intended by the founders in the 16th century, by the use of the original name "Real de Nuestra Señora Santa María del Buen Ayre".  The Greater Buenos Aires conurbation, which also includes several Buenos Aires Province districts, constitutes the fourth-most populous metropolitan area in the Americas, with a population of around 17 million.

Wyandotte County, Kansas: Wyandotte County ( ; county code WY) is a county located in the U.S. state of Kansas.  As of the 2010 census, the population was 157,505, making it the fourth-most populous county in Kansas.  Its county seat and most populous city is Kansas City, with which it shares a unified government.  Wyandotte County lies immediately west of Kansas City, Missouri.

Houston (disambiguation): Houston is the fourth-most populous city in the United States and the most populous in the state of Texas.

Supporting paragraphs: The Acoustic Warriors San Francisco
Answer: Dan Hicks