Ding-ding! Let Round 3 of the latest celebrity feud begin. The latest catty words to be exchanged are among two of the most different, unrelated celebrities yet: Joan Rivers and Jennifer Lawrence.

On Christmas, Rivers told New York Post that she already made her New Year's resolutions list, and Lawrence made the cut.

"My New Year's resolution is [ensuring] Jennifer Lawrence grows up and realizes how lucky she is and calms down," Rivers told the newspaper.

Rivers must still be perturbed about a comment Lawrence made in November. The Hunger Games star criticized the media for making young people fall victim to unrealistic body standards. It sounds innocent enough, but Lawrence struck a chord when she mentioned Rivers's show, "Fashion Police."

"There are shows like the 'Fashion Police' that are just showing these generations of young people to judge people based on all the wrong values and that it's okay to point at people and call them ugly or fat," Lawrence told Marissa Mayer, Yahoo! CEO.

Rivers's fans would say that the 80-year-old star isn't trying to be evil and that she's only having fun. Lawrence disagrees.

"They call it 'fun,' and they say 'welcome to the real world' and that shouldn't be the real world," she continued. "It's going to continue being the real world if we keep it that way. We have to stop treating each other like that and stop calling each other fat."

Rivers isn't one to take an insult quietly.

"I love that she's telling everyone how wrong it is to worry about retouching and body image, and meanwhile, she has been touched up more than a choir boy at the Vatican. Look at her posters. She doesn't have a nose, she has two holes. She just has to learn. Don't talk if you're doing it."

Rivers isn't all insults, however.

"She's an amazing actress, she's the next Meryl Streep," she said.

Back in November, Rivers did not have such friendly comparison to makes. She took to Twitter to publicly interpret Lawrence's comments:

"It's funny how Jennifer Lawrence loved @E_FashionPolice during Awards Season when we were complimenting her every single week..."

"But now that she has a movie to promote, suddenly we're picking on all those poor, helpless actors."

"WAIT! It just dawned on me why Jennifer Lawrence fell on her way up to the stage to get her Oscar. She tripped over her own arrogance."