Many sources appearing in WP:RSP / Newspaper of Record / Music-industry related outlets (Billboard, Official Charts Company)
- Note: certifications for Bocelli found in RIAA, Germany, BPI, SNEP, CAN, BRA, Netherlands, ITA, Mexico, SWI among others
- Note: certifications for Luis Miguel found in RIAA (Latin/Standard), BRA, Argentina, Mexico and others.
- Note: certifications for Pausini found in RIAA, SNEP, BRA, ITA, Argentina, Mexico, SWI among others
- Note: certifications for Dalida found in SNEP, Canada
- Note: certifications for Gabriel found in Argentina, Mexico, RIAA (Latin)
- Note: certifications for Roberto Carlos found in Mexico, Argentina or Brazil
- Note: certifications at least one in Argentina, Netherlands, and many others in France, Canada and UK
- Note: certifications for Estefan in UK, RIAA, Argentina, among many others
- Note: certifications for Parton in UK, RIAA, Netherlands, Canada among others
- Note: certifications for Sesto in Argentina (at least one), and various in Spain*
- Note: with one or more certifications found in Argentina, Netherlands, Spain, Germany, France, Canada and UK
- Note: at least several certifications found in Mexico, and one in RIAA
- Note: certifications for Bublé in RIAA, Canada, Mexico among many others
- Note: certifications for Minogue in UK, Australia, RIAA among many others
- Note: certifications for Lopez in RIAA, UK, AUS among many others