Kiki Dee is best known in the United States for 'Don't Go Breaking My Heart' -the # smash duet with Elton John. But to celebrate her 68th birthday (March 6), we take a look at Kiki Dee then and now - and learn that she was far from a one hit wonder.

Kiki Dee released her very first single in 1963 at age 16 from her debut album I'm Kiki Dee. From there she did work as a backing session singer with artists like Dusty Springfield and Carole King, and scored her first top 20 hit in the UK in 1973.

(Photo by Keystone/Getty Images)

You probably didn't know that Kiki Dee can be heard singing background vocals on the Elton John hit 'Goodbye Yellow Brick Road'. In1976  Kiki Dee became a household name when she teamed up with Elton John for the smash hit duet  'Don't Go Breaking My Heart', which spent four weeks at #1 in the U.S. as well as finding #1 success in other countries.

(photo by Gabe Palacio/Getty Images)

From there she continued to record and tour, mainly in the UK, and then in the early 90s teamed up with songwriter, producer, guitarist Carmelo Luggerie. The two still perform together today, writing songs, touring, and recording.

In over 50 years as a recording artist, Kiki Dee has released 40 singles, three EPs, and 12 albums. While she has an incredibly successful career in the UK, she will be forever known on U.S. soil for 'Don't Go Breaking My Heart.'

[KIKI and CARMELO]