LADY GAGA and Stevie Wonder teamed to sing the latter’s “Happy Birthday” to Elton John at the rock legend’s 70th birthday party in Los Angeles on Saturday.

    Gaga and Wonder served up a duet of the “Hotter Than July” track, with Gaga occasionally modifying the lyrics from “Happy birthday to you” to “Happy birthday Elton” for the occasion.

    John’s 70th birthday bash at Red Studios was a star-studded affair with a guest list that included Gaga, Wonder, Katy Perry, Jon Hamm, James Corden, Rob Lowe, Roseanne Cash and many more.

    The party, which doubled as a celebration for the 50th anniversary of John’s partnership with songwriter Bernie Taupin, benefitted the Elton John Foundation and the Hammer Museum at UCLA, People reported.

    In addition to the “Happy Birthday” duet, Gaga performed a piano-only mini-set that included hits like “Bad Romance” and “Born This Way.” John also performed a brief solo set during his birthday party.

    Ryan Adams, who also attended John’s birthday, performed “Rocket Man,” a track that Adams and John have performed together numerous times in the past.

    Speaking to Beats 1 Radio’s Zane Lowe earlier in the week, John said of his upcoming 70th birthday, “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? 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.”

    (SD-Agencies)