Uta no☆Prince-sama♪ Maji Love 1000%, Dance with Devils Recommendations
both are reverse harems
both are heavily influenced by boy bands and have the male characters break into song
both feature a group of attractive men vying for the girls attention
both are set in an academic setting
Uto no Prince focuses more on the performance side, while Dance with the Devil just throws in the singing as an after thought. Both have very attractive males with a female protagonist that appears clueless. If you like Uta No Prince then you will probably like Dance wit the Devils.
it reminded me of dance with devils because both of the series have 1 girl and a lotta guys that love that one girl. they both are kinda musical music like as well :)