Michael Jackson's "Bad," released in 1987, is a groundbreaking album that expanded on his signature pop, dance, and R&B sound while also incorporating funk, soul, jazz, rock, and hard rock elements. It features a more aggressive sound, a departure from his previous, groove-based style. The album's lyrics explore themes of self-improvement, romance, world peace, and media bias. It was a global sensation, with singles like "I Just Can't Stop Loving You," "Bad," and "Smooth Criminal" achieving chart-topping success.