Free Under The Knife ringtone for your phone. Listen first, then download the version you like. The song is performed by Rise Against. 5 versions are available, from 19 to 72 seconds. Tags: heavy metal, progressive rock and guitar. Click a tag below to see more ringtones like this. Android users need the .MP3 file, iPhone users need the .M4R file. Both are free. To see all ringtones by Rise Against, use the link under the title or look at the related ringtones below.