This research examines a relationship between loneliness with celebrity worship among adolescents using BTS fan accounts on social media twitter. BTS is one of the Boy groups that occupy the first position from 2018 to 2021 which is widely discussed by fans on Twitter social media. Through social media, fans often perform celebrity worship behavior towards their idols. Celebrity worship is described as obsessive behavior involving a one-way relationship between a fan and one or more idols. Many factors influence fans to shape celebrity worship behavior, in this research is loneliness. This study involved 200 respondents, consisting of 193 females and 7 males who had moderate and high levels of loneliness and celebrity worship. The measuring instruments used are the UCLA Loneliness Scale (Version 3) which was adapted by Malahayati (2018) and the Celebrity Attitude Scale (CAS) which was adapted by Lauwhanda (2020). Analysis uses pearson correlation technique, and obstains r (200) = 0.625, p = 0.000 < 0.05. The result shows that there is positive and significant correlation between loneliness and celebrity worship.