The 29-year-old TV personality shared on Instagram Thursday that she was getting inked by renowned tattoo artist Mark Mahoney at Hollywood's Shamrock Social Club.
"In honor of you @joanrivers," Kelly wrote. "If you looked at aerodynamics, at science, the bumble bee should not be able to fly. Physically, it was just not anatomically equipped to soar. Yet it did, defying gravity, defying logic. The bee was a creature that defied and beat the odds, a miracle. Thank you for being my Miracle @joanrivers."
The Shamrock Social Club is also where Robin Williams' daughter Zelda got a tattoo in memory of her late father this week.
Joan's daughter Melissa Rivers also paid tribute to her late mother on Throwback Thursday. Posting a WhoSay photo from 2004 of her mom pushing her son Cooper on a swing, Melissa wrote: "Connecticut, 2004. Mom + Cooper = BFFs... A perfect day. #TBT."
Joan Rivers passed away on September 4, 2014 in New York City. She was 81.