'DWTS': Dancers Dedicate Performances, Date Night for Cox and Arquette

In week three of "Dancing with the Stars," contestants shared personal memories and dedicated their performances to those closest to them.

Iraq war veteran J.R. Martinez had the house in tears when he said he was dancing for the men and women who didn't make it back from Iraq -- and received a standing ovation after the performance. Watch!

Backstage, Martinez told "Extra's" Renee Bargh that he and Karina Smirnoff were both emotional. "She saw me choked up then she was choked up!"

Rob Kardashian dedicated his performance to his dad, O.J. Simpson friend and attorney Robert Kardashian, who died of esophageal cancer when the younger Kardashian was only 15. "That's a portrait of my dad. It's awesome," Rob told Bargh. Mom Kris Jenner and big sister Kim were in the audience, showing support. Rob said, "I'm sure [Kim] was very emotional."

Chaz Bono also danced for his dad, Sonny Bono, who died in a skiing accident in 1998. His mom, Cher, tweeted Monday that if Chaz makes it through round three, she'll show up next week to cheer her son on in person. Bono confirmed, "If we're still here, she'll be here."

Carson Kressley added a little humor to the emotional evening, joking with Renee about judge Len Goodman's comment to Carson that he puts the "boy in flamboyant." Kressley quipped, "Newsflash! I've been putting the boy in flamboyant for a long time. Did he not see the picture of me with my purse in the third grade?"

Later that night, David Arquette and Courteney Cox were seen having dinner together. Cox told the paparazzi, "I'm so proud. He's so good!"

Find out who will be eliminated from "Dancing with the Stars," Tuesday on ABC!