(Irg) Well, I wouldn't say that. The problem is that there is no single word for either yes or no in Welsh. You either repeat or negate the verb. Diwedd yr ail wers. (Projoy) You must be older than you look. :-)

Projoy] Some sort of popular beat combo, m'lud? No - see irach's earlier question
Botherer] An orchestra? Good to see you here! No
irach - Does the group still exist? It's not a group
Rosie] A Big Band/Dance Band? No. Thanks for the explanation. Interestingly Putonghua Chinese (Mandarin as it's often known) does much the same.
Inkspot - Did the group form before 1990? See earlier answers

Inkspot] Title of a piece of music? No
irach - Alexander's Ragtime Band? No

Time for a summary? The answer is a group of people with something in common, mostly male. The 'something in common' has connection with rock music, and takes its name from a specific human, but it's not a group. Questions about this involving religion, sexual activities, and being dubious have all drawn giggles or sniggers from the audience. It's not a relationship by blood, or connected with the military (though there was a connection once - sorry, should have noted that earlier), or a charity organisation. It's sometimes done for money, and it may well involve drinking. There's no connection with a particular time of year, and only a jokey connection with journeys.
Writing all that out makes me think that it's glaringly obvious, but perhaps I shouldn't be cruel ;)

Rosie - Elvis impersonators? YES! So as Rosie was the question-setter before me, the baton is returned to sender.