On Wednesday night's show, the 54-year-old comedienne, who is joining the E! series this month, wore a black fur Dennis Basso coat that she said had belonged to Rivers, who died at age 81 in September.
"It actually is inscribed—it says, 'Joan Rivers,'" Griffin told Cooper, 47. "So in honor of my pal, I am decked out in the Dennis Basso and actual Joan coat and I've been with Joan when she would wear it."
Also read: Royals, Duffy Agree to $65M, 5-Year Contract