"Aside from her undeniable, indisputable talent, Delta is supremely kind," Jeffreys added.
"She radiates warmth and makes everyone in her presence feel like a dear friend."
She then recounted a story from last year's Logies where she witnessed Delta giving an intimate performance for fans to ensure that "no fan would go home disappointed."
She ends the letter with a plea to her readers.
"Please, I beg of you this: If you find yourself sitting on the couch on Sunday night, brimming with rage that has nowhere to go, pick up your phone, take a deep breath, and rather than tapping out another regrettable tweet, do a google search on North Korea or Zaatari Refugee Camp... Send your rage somewhere it deserves to be."
This article previously appeared on WHO.