CAN'T go wrong with 'we belong together'
maybe keyshia cole's 'love'??
or the classic slowjam dance songs.. k-ci and jojo 'all my life', ginuwine 'differences'
wait.. if it's for prom, shouldn't it be the dance THEME song?!?? i've been to 3 senior proms for 2 different schools and they usually play that right after they announce king and queen. and then a different lastlast song of the night.. like boyz ii men 'end of the road'