This study aimed to examine the prediction of religiosity, peer attachment, instagram on hedonic behavior. Hedonic behavior is a pattern of life that directs its activities to seek the pleasure of life, so that the forms of behavior that are raised in hedonic behavior usually spend more time outside the home to have fun with friends, love to give things that are not needed, and always want to be attention to the surrounding environment (Well and Tigert in Engel, [18]). The design used in this study was multiple regression research design. The result showed that: (1) religiosity, peer attachment, instagram contributed effect about 18.2% (R2 = 0.182) on hedonic behavior. (2) Based on the results of hypothesis testing of each variable that has been carried out there are three independent variables that have a significant effect on hedonic behavior, namely sinful acts by religiosity, instagram usage, and number of followers.