|Date of Birth
||3 October 1987,
|Place of Birth
||Cayey, Puerto Rico
Rivera represented Puerto Rico in the Miss Universe 2006 pageant which was televised live internationally from the Shrine Auditorium in Los Angeles, California on July 23, 2006. After competing in swimsuit, evening gown and interview, she was crowned Miss Universe by outgoing titleholder Natalie Glebova of Canada.
Later that evening, Rivera fainted briefly during a press appearance. The incident was reportedly attributed to heat exhaustion (from the stage lights) coupled with the weight of the heavy, chained dress she was wearing.
Rivera was the fifth Puerto Rican to win the title, which makes the island the second most successful entity in the pageant (behind the United States). Prior to Rivera's win, Puerto Rico had been tied with Venezuela, with each having won the pageant four times. Rivera was the third consecutive delegate from Puerto Rico to make the top five at Miss Universe, after Alba Reyes placed second runner-up at Miss Universe 2004 and Cynthia Olavarría was first runner-up at Miss Universe 2005.