Paris Hilton is on cloud nine after sliving during her concert at the Hollywood Palladium … proving a socialite with the right resources can live out their pop star dream.

The “Simple Life” star performed a 17-song set in front of a star-studded crowd … where Kim Kardashian, Kelly Osbourne, and Harry Jowsey were all in attendance. Paris made the night a memorable one for fans, as not only did she host a meet and greet after the show … but she also had Meghan Trainor join her on stage for a performance of “Chasin’.”

While Paris was quick to call the show the “most iconic” of her life … not everyone was entirely sold on this new era of hers.

Watch the video … the “TMZ TV” crew breaks down Paris’ big gig and weighs in on her new music, hinting one song may’ve shown the heiress’ age a bit.

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