Julia Garner and Musician Mark Foster Are Engaged: Source

Julia Garner is going to be a bride!
The Ozark and Dirty John actress is engaged to Foster the People’s lead singer Mark Foster, a source confirms to PEOPLE.
“They got engaged last week when they were in Yellowstone,” says the source.
PEOPLE is out to Garner and Foster’s reps for comment.
Although the couple hasn’t publicly confirmed their engagement, the actress, 25, was photographed wearing a diamond sparkler on her ring finger on Thursday evening at the Dirty Joh