R&B, short for Rhythm and Blues, is a popular music genre that originated in African American communities in the 1940s. It combines elements of jazz, gospel, and blues, and is characterized by its emotive vocal style, steady beat, and themes often revolving around love and relationships. Over the decades, R&B has evolved and influenced many other music genres, including rock, soul, and hip-hop. Modern R&B incorporates elements of pop, funk, and electronic music, making it a versatile and enduring genre. Artists known for R&B include legends like Ray Charles, Aretha Franklin, and contemporary stars like Beyoncé and Usher.