Oprah Fangirls After Meeting 'This Is Us' Star Sterling K Brown -- See the Pic!

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Even Oprah Winfrey gets psyched out by meeting her fave celebs!
The talk show queen took to Instagram on Saturday to share her excitement at coming face-to-face with This Is Us star Sterling K. Brown.
“Look who I just met! I was so excited,” she gushed. “He was so Himself. I love this guy. #sterlingkbrown #thisisus.”
Winfrey was so ecstatic following the encounter -- which took place at a taping of Variety Studio: Actors on Actors presented by Shutterstock -- that she even made a cute collage of pics of the pair for the post.

The 63-year-old star’s followers were just as thrilled about the meeting, immediately commenting on the adorable snaps.
“OMG! Is he as amazing in real life, @oprah?” wrote one fan.
“Randall and Oprah!!!! Makes me so happy!!” added another Instagram user.
Even Brown himself couldn't believe it. "When you're still in shock that @oprah is giving you mad love!!!!" he wrote on his Instagram.

Fortunately Brown was able to pull it together and share a more poised pic with the talk show queen. "When you're able to get it together enough to look like you're not in complete and utter shock that @oprah is a fan!" he wrote.

And the Greenleaf star is definitely used to leaving celebrities starstruck. In fact, the actress’ A Wrinkle in Time co-star Reese Witherspoon recently shared how Winfrey would have cast and crew hypnotized in the make-up room during filming in New Zealand.
“She’d be like, 'You know what book I really love?' and everybody gets silent,” Witherspoon told Conan. “Like, pull out a pen. 'You know what the most important thing I ever learned in my life?' and everybody's like, you could hear a pin drop.”
Find out what else Witherspoon had to say below.