It looks like the most talked-about moment of last night's Golden Globes only lasted a split second. 

It happened between two of the world's biggest celebrities: Leonardo DiCaprio and Lady Gaga. 

As the pop superstar walked to the stage to accept her Globe for Best Actress in a Limited Series or TV Movie, she brushed the star actor, prompting an unusual reaction...

Social media quickly exploded at the unexpected interaction...

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DiCaprio, who won Best Actor for "The Revenant," was a bit embarrassed that he had caused such a stir.

“Oh lord -- that’s trending, huh? ... I just didn’t know what was passing me -- that’s all!" he said in an interview with ET.

Lady Gaga was honored for her role as The Countess in "American Horror Story: Hotel."

For much more coverage of the Globes, check out FOX 411.

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