The 'Marvelous Mrs. Maisel' star revealed she is the face of her late aunt's company, Frances Valentine.
"It was a really special experience and the collection is just beautiful."
Hollywood's hottest stars shine on the silver carpet at the 25th Screen Actors Guild Awards in Los Angeles.
ET caught the exchange between Brown and Brosnahan at the 25th Annual Screen Actors Guild Awards.
Looks like Rachel Brosnahan is getting her dream guest star wish!
The award-winning actress works with Covenant House to help teens experiencing homelessness.
Rachel Brosnahan gives back by supporting Covenant House, a shelter for homeless youth.
The 'Marvelous Mrs. Maisel' star makes her 'Saturday Night Live' hosting debut on Jan. 19.
Check out the musical act that will be joining the actress on Jan. 19!
The 'Marvelous Mrs. Maisel' star played coy about wedding rumors at the 76th Golden Globe Awards, which aired Sunday on NBC.
ET spoke with the 'Marvelous Mrs. Maisel' actress at the 2019 Golden Globe Awards on Sunday.
Peek the newest designer looks we're predicting A-list ladies will wear on the red carpet this Sunday.
The actress also opened up about how the upcoming season explores possible 'love in Paris.'
The 27-year-old actress has certain standards she follows when it comes to choosing her next part.
