Legal eagles David Boies and Ted Olson — the bipartisan buds who teamed on a four-and-a-half-year fight against California’s gay marriage ban that ended in the Supreme Court — will officiate at the wedding of two clients in the case this weekend in LA.

Paul Katami and Jeff Zarrillo were legally married last year in a civil ceremony by then-mayor Antonio Villaraigosa after winning the case that ruled California’s Prop 8 was unconstitutional.

But this time, their nuptials will have “all the bells and whistles” at the Beverly Hilton, a source said.

The couple and their lawyers star in HBO’s “The Case Against 8,” which airs Monday.

Boies and Olson also co-wrote a book on the case, “Redeeming the Dream.”