Fame and tumbler halloween sex videofortune can't shelter you from getting schooled by technology, apparently.

Bruno Mars got a lesson in uploading photos this weekend when fans called him out for his unnecessary photo collages.

It all started when Mars tweeted a photo of a jersey—a typical move he makes with every tour stop's teams. On Friday night, he managed to put two photos of a Chicago Blackhawks jersey together in a collage, showing off the front and back of the gear.

"My collage skills are gettin' pretty epic!" he naively posted on Twitter before doing the same thing the next night.

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Twitter user @nycdevotee93 noticed these, and poked fun at the singer.

"Y'all wait until Bruno Mars learns he can add more than one pic in a tweet," they wrote.

Turns out—the multiple Grammy Award winning, "24K Magic" singing artist had no idea.

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During a Q&A with fans on Twitter, the 31 year old defended his photo editing skills. "First of all there's nothing wrong with my collages," he wrote. "I've received thousands of compliments and I'm looking forward to posting more."

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Despite those thousands of comments, he admitted defeat eventually, tweeting "I'm not really good at making Twitter collages."

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His public struggle caused some fans to cough up all the other times Mars has battled technology, which is....a lot, for someone who's still basically a young.

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But hey—now you know, Bruno. Everyone has got to start somewhere.

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