Joe's worn some silly stuff in the past but I'm quite pleased that he can get away with wearing pretty much anything. There are many artists, like Angus Young who feel the need to wear the same outfit throughout their career.
There is an early AC/DC performance where not only did Angus dress as a schoolboy but lead singer, Bon Scott dresses as a schoolgirl!
https://www.youtube.com/watch?v=868Daj-ys40
He wasn't going to keep that up was he.
but that could've been the novelty that got them noticed.
The Genesis guys say the week that Peter Gabriel put on a dress and wore a fox's head they got on the front cover of NME and put an extra zero on their earnings per show.
https://www.youtube.com/watch?v=dEbqT95IPGY
Pity there are no such videos of the Eagles from their current tour. Maybe they'll turn up in 2055.
I've seen a few comments about how great Glenn looks in a suit but it was widely frowned on during the Long Road Out Of Eden tour.
I suppose Glenn just treats his blue shirt as his work clothes. Would it be embarrassing if two of the band arrived on stage in identical outfits?