Well, at the risk of having my first ever deleted post (which I'm fine with if I'm doing anything wrong), here's the list:
1966 On your birthdate the No. 1 single was The Beatles - "Yellow Submarine / Eleanor Rigby"
1967 On your 1st birthday Scott McKenzie - "San Francisco (Be Sure To Wear Some Flowers In Your Hair)"
1968 On your 2nd birthday The Beach Boys - "Do It Again"
1969 On your 3rd birthday Zager & Evans - "In The Year 2525 (Exordium And Terminus)"
1970 On your 4th birthday Elvis Presley - "The Wonder Of You"
1971 On your 5th birthday Diana Ross - "I'm Still Waiting"
1972 On your 6th birthday Rod Stewart - "You Wear It Well"
1973 On your 7th birthday Donny Osmond - "Young Love"
1974 On your 8th birthday The Osmonds - "Love Me For A Reason"
1975 On your 9th birthday Rod Stewart - "Sailing"
1976 On your 10th birthday Abba - "Dancing Queen"
1977 On your 11th birthday Elvis Presley - "Way Down"
1978 On your 12th birthday The Commodores - "Three Times A Lady"
1979 On your 13th birthday Cliff Richard - "We Don't Talk Anymore"
1980 On your 14th birthday The Jam - "Start"
1981 On your 15th birthday Soft Cell - "Tainted Love"
1982 On your 16th birthday Survivor - "Eye Of The Tiger"
1983 On your 17th birthday UB40 - "Red Red Wine"
1984 On your 18th birthday Stevie Wonder - "I Just Called To Say I Love You"
1985 On your 19th birthday David Bowie & Mick Jagger - "Dancing In The Street"
1986 On your 20th birthday Boris Gardiner - "I Want To Wake Up With You"
1987 On your 21st birthday Rick Astley - "Never Gonna Give You Up"
1988 On your 22nd birthday Yazz & Plastic Population - "The Only Way Is Up"
1989 On your 23rd birthday Jive Bunny - "Swing The Mood"
1990 On your 24th birthday Bombalurina - "Itsy Bitsy Teeny Weeny Yellow Polka Dot Bikini"
1991 On your 25th birthday Bryan Adams - "(Everything I Do) I Do It For You"
1992 On your 26th birthday Snap - "Rhythm Is A Dancer"
1993 On your 27th birthday Culture Beat - "Mr Vain"
1994 On your 28th birthday Wet Wet Wet - "Love Is All Around"
1995 On your 29th birthday Blur - "Country House"
1996 On your 30th birthday Spice Girls - "Wannabe"
1997 On your 31st birthday Will Smith - "Men In Black"
1998 On your 32nd birthday The Manic Street Preachers - "If You Tolerate This Your Children Will Be Next"
1999 On your 33rd birthday Lou Bega - "Mambo No5 (A Little Bit Of...)"
2000 On your 34th birthday Madonna - "Music"
2001 On your 35th birthday Blue - "Too Close"
2002 On your 36th birthday Atomic Kitten - "The Tide Is High (Get The Feeling)"
2003 On your 37th birthday Elton John - "Are You Ready For Love (re-issue)"
2004 On your 38th birthday Natasha Bedingfield - "These Words"
2005 On your 39th birthday Oasis - "The Importance Of Being Idle"