Los Angeles - Kelly Osbourne "screamed" when she found out Melissa Rivers would be hosting Fashion Police.
The 30-year-old star is thrilled the 47-year-old producer is following in her late mother Joan Rivers' footsteps.
She told PEOPLE magazine: "This is what should have happened from day one. Melissa always should have been there.
"When she [Melissa] called me to tell me, I was like screaming, jumping up and down because I'm like, 'Continue the legacy!'"
The former star of the E! show - who quit earlier this year amid controversy surrounding panellist Giuliana Rancic's comments about Zendaya Coleman - has insisted she has a lot of love for her show "family".
She added: "I will always, always love, love, love the time I spent working with Joan [Rivers] and George [Kotsiopoulos] and Melissa.
"They're the most incredible people. They're still part of my family."
Meanwhile, Melissa recently admitted her appointment on the E! show makes her feel like she's coming back "home".
About her new job, she shared: "It's exciting! It's good to feel like I'm home, [and preserving my mother's] legacy."
The news of Melissa's role was confirmed last month by Jeff Olde, executive vice president of programming and development for E!, who said in a statement: "We are pleased to now also feature Melissa in front of the Fashion Police cameras, as she joins returning panelists Giuliana and Brad [Gorescki]."