On this page you will find the Strong ringtone in several versions, all free to download. Original song by London Grammar. You can choose from 10 versions between 13 and 51 seconds. Tags: ambient, slow and pop. 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. More ringtones by London Grammar are on the artist page, the link is under the title.