Elton John is not famous for "subtle," so it should be no surprise he celebrated his 70th birthday Saturday with a glamour-soaked red carpet featuring household names like Katy Perry, Kelly Osbourne, Heidi Klum, Rob Lowe, and Jon Hamm in Oscars-ready looks.
Us Weekly calls the event, also held in honor of John's 50 years of writing with collaborator Bernie Taupin, "the talk of the town."
Celebs streamed into the Hammer Museum in L.A. in their finery to hear Lady Gaga belt out a new, bluesier take on her #1 hit "Born This Way." She also sang a slowed-down "Bad Romance" and duetted with Stevie Wonder on "Happy Birthday."
John and husband David Furnish, decked out in elaborately brocaded jackets, mixed and mingled with the A-listers.
The man of the hour, dressed in the same maroon jacket he would later wear to his party, posted a video on Instagram to thank Facebook friends for the giant card they sent him:
In a snippet of a tribute video shown at the party, John could be heard saying, "Music has been my whole life. It's been my crutch, it's been my soulmate... when I've been sad and I've been happy — it's always been... I feel more enthusiastic about music now than I've ever done."
Earlier, John had shared an adorable pic of himself with his sons Zachary, 6, and Elijah, 4, reacting to his chocolate birthday cake.
Other celebs on hand to celebrate Elton's milestone birthday included Chris Martin, Sacha Baron Cohen & Isla Fisher, Neil Patrick Harris & David Burtka, James Corden & Julia Carey, Ryan Phillippe, Tom Ford & Richard Buckley, Billie Jean King & Ilana Kloss, Stephanie Corneliussen, Chris Cornell, and Robert Herjavec & Kym Johnson-Herjavec.