Free World Hold On (Children Of The Sky) - FISHER Rework ringtone for your phone. Listen first, then download the version you like. Artist: Bob Sinclar featuring FISHER and Steve Edwards. 11 versions are available, from 12 to 60 seconds. If you like house, electronic and disco ringtones, see the tags below. Android users need the .MP3 file, iPhone users need the .M4R file. Both are free. To see all ringtones by Bob Sinclar, use the link under the title or look at the related ringtones below.