I need a song to sing for me exams this year! Can 당신 help?

Im doing exams this 년 and for 음악 I need to sing two songs, I already have one 의해 Taylor 빠른, 스위프트 but my teacher said It cannot be 의해 the same singer, so can 당신 help me pick another song.

P.S I cant sing high pitched songs, 또는 really slow low pitched songs. Thanks!!