The two performed everything from their original songs to famous covers, including Lady Gaga and Bradley Cooper's "Shallow," James Taylor's "Sweet Baby James," Tammy Wynette and George Jones' "Golden Rings" and more.
The livestream, which appeared on Brooks' weekly show, Inside Studio G, received over 3 million views. Many users reported the stream crashed for them because of the high traffic.
Although the livestream has since been taken down, Brooks did leave it up for longer than he intended due to technical difficulties people experienced.
Other performance highlights included the couple's cover of Ed Sheeran's "Perfect," Yearwood's sweet cover of "Amazing Grace" and Brooks performing "One Night a Day" with his saxophone.
Check out their "Shallow" cover.
Prior to the stream, Brooks had asked his fans send in song requests for the night.
"We’ll do our best depending on what the set list is," he told his fans last week, adding that both "covers [and] album cuts are on the table."