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Ellen DeGeneres was impressed by how Julianne Hough dominated the floor in a dance competition with Justin Theroux.
The comedian and talk show host celebrated her 55th birthday on January 26 and Ellen's wife Portia de Rossi turned 39 Thursday.
At the couple's joint birthday party, professional dancer Julianne and Jennifer Aniston's fiancé Justin battled each other.
Justin famously showed off his street dancing abilities on Ellen's show last year, but the demonstration reportedly got heavy at the fete.
"[They] decided to have a breakdancing break-off," Ellen revealed on her eponymous American talk show.
"So we wanted to roll the rug back so they could spin on the floor. And [Julianne] was wearing a skirt and goes, 'I need pants.' ... She and Justin Theroux had a huge dance-off. It was crazy. It was a really fun night. She's an amazing dancer."
Julianne's boyfriend Ryan Seacrest was Ellen's guest while she recounted the incident.
"[She is] amazing at literally everything," Ryan gushed to Ellen.
"She's such an athlete. Literally, I'm afraid to do stuff with her sometimes because I'm afraid I'm going to get injured."
Ellen married Portia de Rossi in summer 2008.
The TV host loves being around kids, although the star would never want a family of her own.
"I don't want to have one. I don't want to have six. I don't want to have any," she revealed on the Tonight Show with Jay Leno recently.
"They're precious to look at and I love them; we have nieces and I love them very much. [But I] don't want 'em."
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