Wreckx-N-Effect is a hip-hop duo from Brooklyn, New York, consisting of Markell Riley and Teddy Riley. They rose to fame in the early 1990s with their hit single "Rump Shaker," which topped the Billboard Hot 100 chart. The duo's music is characterized by its energetic beats, catchy hooks, and socially conscious lyrics. They have released several successful albums, including "Hard or Smooth" and "Raps New Generation," and have collaborated with numerous other artists, including Snoop Dogg, Dr. Dre, and Ice Cube.