Jelaskan Discography dari Blue (boyband) dalam bahasa melayu

* Chart positions: #1 UK, #31 AUS

* UK certification: 4x Platinum

* UK sales: 1.2 million

* Chart positions: #1 UK, #7 ITA, #7 NL, #9 NOR, #15 GER, #24 DEN, #31 SWI, #32 FRA, #36 BEL, #56 SWE, #61 AUS

* UK certification: 4x platinum

* UK sales: 1.3 million

* Worldwide sales: 3 million