Prominent Platonic Pairings

After writing about the dearth of celebrated platonic friendships, I realized I could think of at least one counterexample without too much trouble.

 Sir Ian McKellan and Sir Patrick Stewart are public friends, and their friendship is a big part of what their fans publicly celebrate them for.

What other (non-fictional) living prominent figures fall into this category?  How is their friendship celebrated similarly/differently than romantic ones.  (I notice McKellan/Stewart photos are fairly comic, not contemplative; as far as I know, tabloids don’t pay for exclusive photos of friends on vacations).

It also occurs to me that McKellan and Steward have both aged out of the period in which we’re primarily interested in them as heartthrobs or other sexualized types.  Are there prominent platonic pairings where one or both of the partners still fit our model for romantic interests?

(Yes, yes, I would never give you an Ian McKellan-related post without adding this clip)