Article continues below advertisementMiley Cyrus seems to have traded flowers for an engagement ring.The singer, 33, fueled rumors of an engagement after she was spotted wearing a diamond sparkler on her ring finger.Cyrus attended the Avatar: Fire and Ash world premiere in Los Angeles, Calif., on Monday, December 1, alongside boyfriend Maxx Morando.Page Six later confirmed they are engaged.Article continues below advertisementSource: MEGAMiley Cyrus and Maxx Morando matched on the red carpet.She stunned in a sequin, strapless gown with an oversized bow attached to a voluminous skirt.