Nine months later, on December 19, 2006, the concert "Popcoholic with Purple" at Widya Mandala Krida Stadium, Kedungwuni, Pekalongan ended in riots that resulted in 10 deaths and six others seriously injured because of being trampled and lack of oxygen when tens of thousands crowded out after watching their concert.
Sembilan bulan kemudian, tepatnya 19 Desember 2006, konser "Popcoholic with Ungu" di Stadion Widya Mandala Krida, Kedungwuni, Pekalongan berakhir dengan kericuhan yang mengakibatkan 10 orang meninggal dunia dan enam lainnya luka serius karena terinjak-injak dan kekurangan oksigen ketika puluhan ribu orang berdesakan keluar usai menyaksikan konser mereka.