As a way to give back to West Hollywood for its continued support of the Elton John AIDS Foundation, the singer teamed up with AOL to give the city a free hour-long concert on Saturday.
And as if that wasn't enough already, Elton decided to bring out his friend Lady Gaga for a surprise performance of his classic song "Don't Let The Sun Go Down On Me."
*Forever has goosebumps*
Of course, this isn't the first time these two shared a stage. Back in 2010 during the 54th Grammy Awards, the pair sang Gaga's "Speechless" and Elton's "Your Song" at while riffing on opposing pianos.
Gaga and Elton — always leaving us speechless.
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