Carly Rae Jepsen Is Jack Antonoff’s Perfect Foil On The New Bleachers Song Posted by April 17, 2017 Leave a comment on Carly Rae Jepsen Is Jack Antonoff’s Perfect Foil On The New Bleachers Song Carly Rae Jepsen chimes in on backup vocals for Bleachers’ new song ‘Hate That You Know Me.’