Happy birthday, to the Rocket Man!

The veteran rock and pop singer-songwriter turned 70 Saturday and celebrated his milestone birthday at a huge bash in Hollywood with his husband David Furnish and a slew of celebs.

Friend Lady Gaga, godmother of the couple's two sons, and Stevie Wonder performed the latter's 1980 hit "Happy Birthday."

He also sang John's 1973 song "Daniel" by himself, while Gaga also performed her 2011 single "Born This Way."

In addition, Ryan Adams grabbed a guitar and took the stage to give John's 1972 hit "Rocket Man," one of his most famous tracks, a hipster spin.