Derek Hough and Sterling K. Brown Have Epic Dance-Off While Mandy Moore Shares BTS Pic From 'This Is Us'

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Photo: Instagram
We're incredibly impressed by Sterling K. Brown's dance skills!
The 41-year-old actor showed off his moves in an epic dance battle with Derek Hough on Friday.
"My man @sterlingkbrown has moves #nbc #thisisus #dancing #robot," Hough captioned a video of their dance-off.

Though it's unclear what prompted the battle, this isn't the first time Brown has gotten down on Instagram. In fact, the actor posted another "impromptu dance session" last Sunday.

While Brown gets his boogie on, his This Is Us mom, Mandy Moore, has been hard at work.
"And that's a wrap on episode 3 for me. Happy weekend, folks! #thisisus 📷by @zoehaymakeup," she wrote alongside a sweet BTS photo of herself on set.

Moore recently revealed to ET that she'll be bringing more of her musical talents to the show's second season. 
"There may be some singing coming up, I'm just saying," she dished. "I don't know if it'll be [Chrissy Metz and I] together or us by ourselves. Might be happening."
See more in the video below.