"Goodbye Yellow Brick Road," hello, Sunset Strip.
The show, which organizers said would also be streamed live on AOL.com, will take place in front of the old Tower Records building, a favorite John hangout back in the day.
John said he planned the concert as a thank you to the city.
"The city of West Hollywood has welcomed the Elton John AIDS Foundation and our annual Academy Awards Viewing Party with open arms for many years, providing us with the perfect environment to host a really fun and special evening," the singer said in a statement. "We are profoundly grateful for their generous support, so I wanted to do something special just for them by giving our West Hollywood fans and supporters a surprise concert."
The concert will include some of John's greatest hits, along with tunes from his latest album, "Wonderful Crazy Night."
John and his husband, David Furnish, will host their annual viewing party for the Oscars on Sunday in West Hollywood Park.
Times reporter Randy Lewis will tweet live from the event: @RandyLewis2.
UPDATE: Lady Gaga confirms on twitter that she will also be at the live show.