Free Gravity ringtone for your phone. Listen first, then download the version you like. Artist: John Mayer. There are 6 versions, from 18 to 69 seconds long. If you like slide guitar, guitar and drum ringtones, see the tags below. Two formats are available: .MP3 for Android and other phones and .M4R for iPhone. All ringtones by John Mayer are collected on the artist page.