Originally Posted by Holdfast
If the client is happy for their name to be used in conjunction with your brand, all well & good. If they haven't given explicit permission, clearly a no-no in my worldview.
Assuming permission is given, on the wider question of whether it is good marketing, I think that depends on both the quality (read that any way you like) of the celebrity and whether the linking of the two brands makes sense in terms of the public image you want to create.
For RTW, I can see this. In fact, celebrities get paid
to wear clothes from various brands. I'm sure there are people who want to look like Kobe Bryant so that's a plus for them. But for bespoke, it's probably very different. I can't imagine many potential bespoke customers would be really attracted to a particular house because they had produced this . . .
On the other hand, while I, personally, value discretion, I am forced to admit that there is a long tradition of celebrity name-dropping in bespoke that goes right back to the beginning. How many bespoke houses splash about a royal warrant? Which, BTW, they almost certainly paid for the privilege of receiving.