Why song title page |
| blue # = weekly pop chart |
| 1 | Why? | 1953 |
| Karen Chandler |
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| 2 | Why | 1954 |
| Nat King Cole with Nelson Riddle Orchestra |
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| 3 | Why | 1957 |
| The Cues |
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| 4 | Why | May 1959 |
| Gary Lee |
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| 5 | Why | 1 | Dec 1959 |
| Frankie Avalon |
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| 6 | Why | Feb 1960 |
| Anthony Newley |
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| 7 | Why | Apr 1964 |
| The Beatles With Tony Sheridan |
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| 8 | Why (Doncha Be My Girl) | Nov 1964 |
| The Chartbusters |
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| 9 | Why? (Am I Treated So Bad) | Apr 1967 |
| Cannonball Adderley |
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| 10 | Why (Am I Treated So Bad) | Jun 1967 |
| The Staple Singers |
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| 11 | Why (Am I Treated So Bad) | Jul 1967 |
| Bobby Powell |
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| 12 | Why (Am I Treated So Bad) | Jul 1967 |
| The Sweet Inspirations |
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| 13 | Why (Must We Fall In Love) | Apr 1970 |
| Diana Ross And The Supremes & The Temptations |
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| 14 | Why? | Mar 1971 |
| Roger Whittaker |
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| 15 | Why | 20 | Oct 1972 |
| Donny Osmond |
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| 16 | Why | Aug 1975 |
| Average White Band |
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| 17 | Why | Aug 1982 |
| Carly Simon |
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| 18 | Why? | Oct 1984 |
| Bronski Beat |
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| 19 | Why | Jul 1991 |
| Small Change |
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| 20 | Why | 27 | Jun 1992 |
| Annie Lennox |
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| 21 | Why? | Feb 1994 |
| D-Mob With Cathy Dennis |
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| 22 | (I Wanna Know) Why | Mar 1994 |
| Sinclair |
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| 23 | Why | Oct 1994 |
| Meat Puppets |
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| 24 | Why | Aug 1995 |
| Jamie Walters |
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| 25 | Why? | Aug 1996 |
| Ricardo Da Force |
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| 26 | Why | Oct 1996 |
| 3T Featuring Michael Jackson |
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| 27 | Why | Nov 1999 |
| Glamma Kid |
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| 28 | Why | 1999 |
| Wide Mouth Mason |
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| 29 | Why | Jan 2001 |
| Mis-Teeq |
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| 30 | Why | Apr 2002 |
| Agent Sumo |
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| 31 | Why? (Looking Back) | Jun 2003 |
| Heartless Crew |
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| 32 | Why? | Sep 2004 |
| Jadakiss Featuring Anthony Hamilton |
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| 33 | Why | Jun 2005 |
| Sonique |
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| 34 | Why | Jun 2005 |
| DJ Sammy |
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| 35 | Why | May 2006 |
| Jason Aldean |
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| 36 | Why | Sep 2007 |
| Gabrielle Featuring Paul Weller |
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| 37 | Why | Sep 2007 |
| Junkyard Prophet Featuring Stephanie Joy |
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| 38 | Why | Nov 2009 |
| Rascal Flatts |
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| 39 | Why | Jul 2012 |
| Mary J. Blige Featuring Rick Ross |
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| 40 | Why | Jun 2013 |
| Michelle Chamuel |
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