Hills actor Spencer Pratt has issued an apology to Mary-Kate Olsen after calling her the "less cute twin". It all started when Olsen told David Letterman that Pratt always has a bad temper and used to throw tantrum during their high school soccer games. Pratt then fired back the compliment to the US Magazine. Pratt has explained that his soccer stuff being emotional to him after the apology. Source: Celebparasite