Robbie Arnett is a member of the indie folk band Milo Greene, which is known for its harmonious sound and rich instrumentation. The band, formed in 2009, gained popularity with their self-titled debut album and has since released several successful projects. Their music often features a blend of various genres, showcasing the talents of each member, including Arnett, who contributes as a vocalist and instrumentalist. This connection to Milo Greene highlights Arnett's artistic background, complementing Elizabeth Olsen's own creative career in acting.