decibelles are a small all female a cappella group from cardiff university. decibelles perform a range of songs arranged by members of the group, and like performing songs about female empowerment. current arrangements include; almost human (rag'n'bone man), salute (little mix), superlove (andreya triana) and more. in 2019, the decibelles came third in their icca quarterfinal in exeter, becoming the first welsh group to qualify for the icca semi finals.. they also reached the icca semi finals in 2020