Vintage T-Shirt Forum & Community Authentication Appraisals

I'm trying to authenticate a Red Hot Chili Peppers t-shirt I recently found. It's believed to be a design from the 1999 Californication European tour...

In terms of material, this is an authentic B&G product, and the print is very good. After searching the internet, there are only black t-shirts with the same backhit but a different front. This is the first time I've seen this article and so many strange RHCP articles. On the other hand, I suspect, it could be printed now on vintage t-shirts using black references (tshirtslayer.com)

My tendency is to refer to the new print, because only on this website does it appear
I can't claim this is authentic vintage, because nowadays so many strange things come out.

Maybe someone here has seen it? you can add comments

Thanks for your analysis! Indeed, the only model with this design I could find is on a black t-shirt (seen on TShirtSlayer). I bought it from someone who also had several other tees, including a Playboy Marilyn Monroe 1994, a Rage Against the Machine "We Support Our Troops" tee, and a superb Slipknot Iowa tee. The RHCP was clearly the newest of the lot...