PV（プロモーションビデオ）・MV（ミュージックビデオ）やライブ動画を無料で視聴できる-MyDo(マイ動画)音楽情報館

Touhou - Bad Apple (Men Only) について・・・

There is 3 guys singing this. Note: "these three guys are actually four guys, named Terry and Oredan (the guy who does the bass, he doesn't actually sing), Nittomegane (a.k.a. Ken, also the guy with high pitch voice and beatbox) and Xiao (noticeable at the ad lib in the middle)"