Los Angeles, commonly known as L.A., is the largest city in California and the second most populous in the U.S. It serves as the commercial, financial, and cultural hub of Southern California. With a population of around 3.9 million as of 2020, L.A. is famous for its Mediterranean climate, diverse population, and as the epicenter of the entertainment industry, particularly Hollywood. The city also offers a rich mix of cultural landmarks, including world-class museums, beaches, and a dynamic food scene, making it a global metropolis.