✔ 最佳答案
Band, but only because they play/have instruments. True boy bands are typically vocals ONLY and have members that are all young males (typically in the teens or early 20s when they start the group). Examples of "real" boy bands would be - Backstreet Boys, *Nsync, 98 Degrees, etc.
A band is NOT a "boy band" just because all the members are male. If that was the case, then Slipknot, Seether, AC/DC, Led Zeppelin, Children of Bodom, etc. would all be "boy bands" (and they most certainly ARE NOT!).