Name for musical guys including their number in act (4)

I haven't cracked this one yet — but the brilliant team at Times for the Times have:

got this from the definition, and I’ve come back to look at it a bunch, but I think this has to be the band MOE, that has five members, so put a V in. I’ve never seen the band, though they did a show in my town a few years ago and a lot of people were excited about seeing them.  Are they popular enough to get into the Times crossword? Thanks to jackkt: there is a musical Five Guys Named Moe, so my rumniations on obcsure jam bands was mistaken.