LL Cool J (born James Todd Smith) is an American rapper, actor, and entrepreneur widely recognized as one of the first artists to successfully bridge underground hip-hop and mainstream popular culture. Emerging in the mid-1980s as one of the earliest stars of Def Jam Recordings, he helped define the solo rapper archetype at a time when hip-hop was still dominated by groups. Known for his versatility, LL Cool J combined aggressive battle rhymes with smooth, romantic, and radio-friendly tracks, expanding the emotional and thematic range of rap music. Over the course of his career, he released multiple platinum-selling albums, delivered enduring hits, and maintained cultural relevance across several decades. Beyond music, LL Cool J built a parallel career in film and television, further cementing his status as a crossover icon. His influence can be seen in generations of artists who balance lyrical toughness with vulnerability, charisma, and mass appeal, making him a foundational figure in the evolution of modern hip-hop.