The hills of Montana come to life with the music of Broadway when stage stars Audra McDonald, Jessie Mueller, Vanessa Williams, Abby Mueller, Andrea McArdle, and Carrie Manolakos perform at the final 2017 edition of the Concert for America: Stand Up, Sing Out! series, which is raising money for human rights organizations. The concerts are presented December 27 and 28.

Both concerts will be livestreamed on Facebook starting at 7:30 PM CST (9:30 PM ET, 6:30 PM PT).

Watch the livestream below:

Playbill columnist Seth Rudetsky and James Wesley again share hosting duties.

Rudetsky told Playbill, “[Sisters] Jessie and Abby are going to do a duet together! And this [concert] is different because were doing it two nights…and there will definitely be some different songs in each performance. People can watch the live stream December 27 and 28 and not see the exact same concert!”

The monthly Concerts for America series, created by Rudetsky and Wesley, benefits The Southern Poverty Law Center, National Immigration Law Center, The Sierra Club Foundation, NAACP, and National Coalition Against Domestic Violence. Participating performers are subject to change.

As for the next Concert for America, Rudetsky said, “James and I have decided to stop being non-partisan and start doing salons in people’s homes. We did one a few months ago at Judy Kuhn‘s for Letitia James, our public advocate, and it was fantastic. I wrote about it in one of my columns. We’re going to go around the country and do salons with stars to support candidates in small important races. ”

Read: ANN HARADA AND JUDY KUHN SING A CHESS DUET AND OTHER HIGHLIGHTS FROM SETH RUDETSKY’S WEEK