"Certified Awards SearchArchived 17 November 2017 at the Wayback Machine". British Phonographic Industry. Retrieved 25 September 2011. Note: User needs to enter "Haircut 100" in the "Search" field, "Artist" in the "Search by" field and click the "Go" button. Select "More info" next to the relevant entry to see full certification history.
"Certified Awards SearchArchived 17 November 2017 at the Wayback Machine". British Phonographic Industry. Retrieved 25 September 2011. Note: User needs to enter "Haircut 100" in the "Search" field, "Artist" in the "Search by" field and click the "Go" button. Select "More info" next to the relevant entry to see full certification history.