The best-selling  album of 1990's in United Kingdom is (WHAT'S THE STORY) MORNING GLORY? by OASIS which sold 4,160,000 copies. 
                             
                              
                             
                             | Rank | Artist | Album | Sales | Released | 
                            | 1 | OASIS | (WHAT'S THE STORY) MORNING GLORY? | 4,160,000 | 1995 | 
                            | 2 | SIMPLY RED | STARS | 3,290,000 | 1991 | 
                            | 3 | SPICE GIRLS | SPICE | 3,020,000 | 1996 | 
                            | 4 | THE CORRS | TALK ON CORNERS | 2,600,000 | 1995 | 
                            | 5 | ALANIS MORISSETTE | JAGGED LITTLE PILL | 2,570,000 | 1995 | 
                            | 6 | ROBSON & JEROME | ROBSON & JEROME | 2,530,000 | 1995 | 
                            | 7 | MADONNA | THE IMMACULATE COLLECTION | 2,500,000 | 1990 | 
                            | 8 | THE VERVE | URBAN HYMNS | 2,480,000 | 1997 | 
                            | 9 | ABBA | GOLD - GREATEST HITS | 2,420,000 | 1992 | 
                            | 10 | CELINE DION | FALLING INTO YOU | 2,130,000 | 1996 | 
                            | 11 | QUEEN | GREATEST HITS II | 2,100,000 | 1991 | 
                            | 12 | ELTON JOHN | THE VERY BEST OF ELTON JOHN | 2,060,000 | 1990 | 
                            | 13 | WHITNEY HOUSTON | THE BODYGUARD (SOUNDTRACK) | 2,050,000 | 1992 | 
                            | 14 | TINA TURNER | SIMPLY THE BEST | 1,960,000 | 1991 | 
                            | 15 | GEORGE MICHAEL | LADIES & GENTLEMEN - THE BEST OF GEORGE MICHAEL | 1,950,000 | 1998 | 
                            | 16 | R.E.M. | AUTOMATIC FOR THE PEOPLE | 1,870,000 | 1992 | 
                            | 17 | MICHAEL JACKSON | DANGEROUS | 1,870,000 | 1991 | 
                            | 18 | ROBBIE WILLIAMS | I'VE BEEN EXPECTING YOU | 1,860,000 | 1998 | 
                            | 19 | CELINE DION | THE COLOUR OF MY LOVE | 1,850,000 | 1993 | 
                            | 20 | THE BEAUTIFUL SOUTH | CARRY ON UP THE CHARTS - THE BEST OF | 1,840,000 | 1994 | 
 
Source: CIN data / Music Week Issue December 18, 1999
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