It's been a few months since Britney Spears released her ballad-filled eighth studio album. Now, Britney is going unplugged on her latest rework of the somber single, "Passenger". This time, Mama Spears gets a little help from song co-writer Sia.
Are you guys feeling the toned down version more than the original?
Listen, below, as the two superstars croon melodically over guitars played by Nick* & Country Club Martini Crew.