adele wears a stylish jacket and black dress, but dresses casual compared to rihanna it shows her formal/casual side and her personality and music is represented through her dress.
rihanna hits the red carpet wearing a white dress with back and leg showing still being glamourous with a hint of sking showing, for male gaze theory, stylish for the fashion side and sexy for the male side.
adele's image is represented as shy with the hand playing with her hair, she is using direct eye contact with the audience to draw their attention.
