A group's physical attractiveness is greater than the average attractiveness of its members: the group attractiveness effect
Personality and Social Psychology Bulletin (2015) - Comment
pubmed: 25733515  doi: 10.1177/0146167215572799  issn: 1552-7433  issn: 0146-1672 

Yvette Van Osch, Irene Blanken, Maartje H. J. Meijs, Job Van Wolferen