Stevie Wonder, Gaga perform at Elton John's 70 birthday bashLos Angeles, March 26 (AZINS) Singers like Stevie Wonder, Lady Gaga and Ryan Adams performed at the 70th birthday celebrations of Grammy winning singer Elton John, who says a person is only as old as one feels within.

The iconic singer's lengthy career was honoured throughout the evening by host Rob Lowe, with top singers, including Roseanne Cash, on Saturday night, reports people.com.

The guest list included celebrities like Neil Patrick Harris, Ryan Phillippe, Jon Hamm, Heidi Klum and Katy Perry.

The gala, which also paid tribute to John's 50-year writing partnership with Bernie Taupin, benefited both the Elton John AIDS Foundation and the Hammer Museum at University od California - Los Angeles.

"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," John said.

"Seventy sounds so archaic, doesn't it? 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," he added.

Ahead of the gala, John shared photographs from his family's private birthday celebrations at their home, where he was joined by his young sons Elijah and Zachary.

In one Instagram image, the three can be seen gathered around a chocolate cake. The singer also shared several photographs of the birthday cards he had received for his birthday.