What does a 50 year old frump wear to a swanky nightclub?

[rhubarbcrumbleplease]

We've just received an invitation to a birthday party at club; cocktails, dinner & dancing.
Am I right in thinking my usual cotton Boden shift won't be right? I haven't been to a club for years & haven't a clue.
What do the cool metropolitan set wear? Please don't make me mutton

That's nice DryWhite. I'd put a very striking / big necklace or cuff with it and a pair of fuck off heels.

Absolutely. Think accessories can make something simple look incredible.and they don't need to be expensive

I'd wear black leather trousers/skinny jeans and a spaghetti strap top in silver. Plus heels.
I'm 41.

Nice outfit Nerf and I have many combinations of it! But not in this weather!

OP will you come back and tell us what you wore?

I'm trying to find out what other people are wearing, but yes, of course.
I am more comfortable in a dress but trying to find one not too weddingy, young or provincial-goes-to-town is proving a challenge.
There's a lovely Issa one but it's too bright.

Thanks so all of you for your help.

I would never wear a dress/skirt to a club unless it's one of those awful ones where the shorter and tighter your dress, the more likely you are to get in (and I dont go to those anymore anyway ). Skinnies (leather or waxed) and an edgy top... plus killer heels.

Which club is it? That's relevant because they vary a lot .