Complex sentence: It became her first number one single in the U.S. and Canada and eventually went on to become the best-selling single of 2002 and was certified gold by the Recording Industry Association of America (RIAA).
Split into simpler sentences: It became her first number one single in the U.S. and Canada and eventually went on to become the best-selling single of 2002. It was certified gold by the Recording Industry Association of America (RIAA).