Sir Elton John has "always" enjoyed celebrating his birthday

And the 'Rocket Man' hitmaker admitted he has never been one to shy away from his special day, although he believes saying his age out loud sounds "archaic".

Speaking at the party, Elton said: "Some people don't like birthdays, they don't like celebrating, they don't want to know about them, and I've always enjoyed my birthday.

"Seventy sounds so archaic, doesn't it?"

Elton has decided to view his age as merely a number as he believes it is how you feel inside that matter.

He added: "When I was growing up, 70 sounded like the end of the world. But things have changed -- you're only as old as you feel inside."

The star-studded bash was hosted by 53-year-old actor Rob Lowe, and not only celebrated Elton's milestone, but it also helped to raise money for the Elton John Aids Foundation, as well as the Hammer Museum.

Lady Gaga, Stevie Wonder and Ryan Adams graced the stage to perform for the pianist - whose full name is Reginald Kenneth Dwight - during the evening, which was attended by fellow artists Katy Perry, supermodel Heidi Klum, Neil Patrick Harris and 'Bridesmaids' actor Jon Hamm.

And so not to miss out on celebrating the special day Elton, his husband David Furnish and their sons Elijah, four, and six-year-old Zachary at home together earlier in the day.

He shared a sweet picture of him with his brood on his Instagram account, which read: "Birthday bliss

@davidfurnish #HappyBirthdayElton (sic)"

Meanwhile, Bernie - who co-wrote a number of singles with the singer including 'Tiny Dancer' - has revealed both him and Elton have no plans of retiring from the music industry.

He told the Mirror Online: "Good lord, no. I will retire when they put me in the grave - it's the same for Elton.

"Absolutely. We are work horses.

"We enjoy what we do. We always have. We have the same enthusiasm now as we did when we started out in 1967.

"It's exactly what you say: if he puts his mind to something, it's in the bag. He's got such a drive in him that he makes everybody works as hard as he does and he ends up achieving what he needs to achieve."