What gathering? Are there Nutters converging?
ETA: So that this isn't a total jack...Sting, with any color hair/beard looks far better than most 57 year old men I see, so I'm not going to complain. And, there are certainly more ridiculous things he could wear. Personally, I would prioritize his "looks" in this way.
1. Clean shaven, blond hair (classic)
2. Graying beard, blond hair (tourzilla look)
3. This new color combo (auburn? ish?)
4. That wierd Dune-ish apricot mullet with the spiky thingies