After Attitude magazine published an interview with Liam that made Rainbow Direction out to be a "Larry" thing (which it's not) and minimized the importance of the rainbows brought to concerts, Harry grabbed a rainbow flag and ran down the catwalk with it.
We also go a Larry side-by-side during the group hug for Niall's birthday:
Harry also made a speech about how One Direction celebrates love and love is love.
There were also reports that during a meet and greet Louis said "You can't just assume things" after Harry mistakenly thought a girl was straight and asked if a guy was her boyfriend (but she was actually a lesbian).
"You can't just assume those things" LOUIS FUCKING SAID THAT AFTER HARRY ASSUMED MY FRIEND WAS STRAIGHT BUT SHE TOLD HIM SHE'S LESBIAN IM— rach (@rogueidols) September 13, 2015