WATCH: Elton John and Lady Gaga’s Surprise Concert on Sunset Strip

Sir Elton John loves West Hollywood, California. And to show his appreciation, he hosted a surprise, free concert on the Los Angeles gayborhood's Sunset Strip on Saturday afternoon.

The Grammy-winning entertainer performed for more than an hour, playing several tracks from his new album, Wonderful Crazy Night, including "Looking Up."

But in case an unexpected, free, full-length concert wasn't enough of a treat for the city John says he loves dearly, he brought fellow out Grammy-winner Lady Gaga on stage for a stirring rendition of "Don't Let the Sun Go Down on Me" and "Saturday Night's Alright (For Fighting)." That seemed like a fitting tribute on the night before Lady Gaga attends the 88th Annual Academy Awards, hoping to win her first Oscar for "Til It Happens to You," her haunting contribution to the documentary film about campus rape, The Hunting Ground.

John dedicated "Don't Let the Sun Go Down on Me" to "all of you out there, for many years of love and loyalty."

Watch the performances with John and Gaga below.