Celebrity / lists 3 Stars People Used to Love and Now Hate Over the past two years, there's a trio that has sustained epic falls from grace By Jenn Gidman, Newser Staff Posted Aug 13, 2015 4:26 PM CDT Copied In this June 28, 2015, file photo, Ariana Grande performs at NYC Pride's Dance on the Pier at Pier 26 in New York. (Photo by Scott Roth/Invision/AP, File) (Newser) – Twice a year, Q Scores compiles stats for how popular celebrities are—as well as how unpopular they may be. The Hollywood Reporter took those figures, crunched the numbers between 2013 and 2015, and came up with the top 10 stars who've fallen from grace the hardest (i.e., experienced the biggest jump in their negative Q Score) during that time, as well as the most popular/unpopular stars overall. The three stars who experienced the largest dip in popularity: In science versus Dr. Mehmet Oz, it looks like science won—at least in terms of what the public thinks about him. Oz saw a 16-point increase in his negative Q Score, helped along by repudiation from the medical community on what they call his "quack" advice. Ariana Grande's 26-point increase in neg Q was probably boosted by her penchant for "maliciously" licking doughnuts and saying she hates America, even though she's since apologized. story continues below The person who once held one of the highest Q Scores is now the person on the list with the largest dip in popularity ever. One of the company's executive VPs says it's a "complete reversal" for Bill Cosby, who saw an unprecedented 43-point increase in his negative Q Score, due to things like this and this. As for celebrities who had the highest and lowest Q Scores overall: Tom Hanks and Morgan Freeman tied for the most popular stars, with a Q Score of 48 points each, while Kim Kardashian nabbed the highest negative Q Score at 71 points—a fact that probably doesn't hurt her much because people love to hate her, the company VP notes. Check out the entire list at the Hollywood Reporter to see what other stars people love and hate (and love to hate).