Madonna’s concert at the Dodger Stadium in Los Angeles last night featured two very special guests, who nevertheless were never on the same stage together: former Mouseketeers Britney Spears and Justin Timberlake.

Pop superstar Madonna was among the celebrities that expressed support for pop princess Britney Spears during her more difficult times of not so long ago. It should come as no surprise then that the 50-year-old singer invited the younger one on stage Thursday night to rock on “Human Nature.”

Madonna played guitar as well and the two performed staying close together and frequently placing one arm around the other’s shoulder.

Wearing a demure tuxedo- style shirt, pants and black heels, Spears introduced herself with a take from her last album: "It's Britney Bitch."

She then sang along with Madonna on the last verse of the track Human Nature, to the delight of the crowd, which included Jennifer Lopez, Ryan Seacrest, Heidi Klum, Drew Barrymore, Fergie and Donald Sutherland.

Madonna courteously kissed Britney’s hand when they had finished their song. Kissing comes comfortably to the two, as we can all recall their cheeky tongue-action during the opening performance of the 2003 MTV Music Awards.

Critics said it was her best performance yet in her bid to come back from the effects of her traumatic marriage break-up last year.

The performance was part of Madonna’s Sticky and Sweet tour, in support of her latest album “Hard Candy.” The night also featured another young pop icon, from the same generation as Britney (and as it happens, former boyfriend) Justin Timberlake, who joined Madonna on stage for their duet “4 Minutes.” The two also did some of their fancy dancing, as in the video.

While some concertgoers had speculated they would see Britney Spears and Justin Timberlake on the same stage, perhaps even singing and dancing together, this never happened. It isn’t even clear whether the two faced each other at all.

It is clear though that not even lighting problems and technical difficulties could stop Madonna from giving fans her best, on a half-completed set as it was.

Madonna closed the show with a multi-colored image of president- elect Barack Obama on her huge video backdrop. "We have something to celebrate," she said. "I don't know about you, but I'm the happiest girl."