JENNIFER Lopez surprised audiences when she stepped onstage at the MTV Movie Awards to join Les Grossman (aka Tom Cruise) in a little song and dance routine, but no one was more surprised than J.Lo herself.

“Working with Tom was amazing,” the singer-dancer gushed to Extra.

“I’m such a hard worker, and I’m kind of intense about my job. It’s great to work with someone who is just as intense and passionate and crazy about getting everything right.”

Jennifer explained that she and Tom rehearsed for the skit a month in advance.

“[Tom] called me a month before and said, ‘I have this idea. I’m doing this thing for the MTV Movie Awards, and I want it to be a surprise’,” she described.

“I said OK, we’d do a little mash-up of [Ludacris' 'Get Back' and a Lopez's song 'Get Right']. I come out and sing a little and then we dance together. But [I told him] you have to learn this cane dance that I do in the video.”

As it turns out, Jennifer was more than impressed with Tom’s dance moves.

“The thing with that routine is that it is one of the hardest routines. But he did it. He really, really did it. And he did a great job. I was really proud of him.”

Go Les!

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