LONDON, ENGLAND - AUGUST 11: Zac Efron and Emily Ratajkowski attend the European Premiere of "We Are Your Friends" at Ritzy Brixton on August 11, 2015 in London, England. (Photo by Samir Hussein/WireImage)
LONDON, ENGLAND - AUGUST 11: Zac Efron and Emily Ratajkowski attend the European Premiere of "We Are Your Friends" at Ritzy Brixton on August 11, 2015 in London, England. (Photo by Samir Hussein/WireImage)