heres the albums that were #1 in the UK on my birthday, idk about the US
1991 On your birthdate the No. 1 album was Eurythmics - "Greatest Hits"
1992 On your 1st birthday Lionel Richie - "Back To Front"
1993 On your 2nd birthday Tina Turner - "What's Love Got To Do With It (OST)"
1994 On your 3rd birthday Two Unlimited - "Real Things"
1995 On your 4th birthday Pink Floyd - "Pulse"
1996 On your 5th birthday Bryan Adams - "18 Til I Die"
1997 On your 6th birthday Hanson - "Middle Of Nowhere"
1998 On your 7th birthday Embrace - "The Good Will Out"
1999 On your 8th birthday Boyzone - "By Request"
2000 On your 9th birthday Tom Jones - "Reload"
2001 On your 10th birthday Travis - "The Invisible Band"
2002 On your 11th birthday Eminem - "The Eminem Show"
2003 On your 12th birthday Radiohead - "Hail To The Thief"
2004 On your 13th birthday Faithless - "No Roots"
2005 On your 14th birthday Coldplay - "X & Y"
2006 On your 15th birthday Orson - "Bright Idea"
2007 On your 16th birthday Traveling Wilburys - "Collection"
2008 On your 17th birthday Coldplay - "Viva La Vida Or Death And All His Friends"
2009 On your 18th birthday Kasabian - "West Ryder Pauper Lunatic Asylum"
2010 On your 19th birthday Christina Aguilera - "Bionic"
2011 On your 20th birthday Phil Collins - "Going Back"
http://www.everyhit.com