I Did a Thing

Alex Apollonov is an Australian YouTube personality and comedian, better known for his online presence as I Did a Thing, and his YouTube channel of the same name. He is also the co-star of Boy Boy which he created with fellow comedian Aleksa Vulović who also stars in his videos. Much of Apollonov's content involves using his engineering and fabrication skills to design and build a variety of projects, including recreating the Utah monolith in Australia, simulating the Aurora Borealis in his kitchen with a high voltage transformer to parody The Simpsons, and making a scaled-up chainsaw powered Beyblade with a giant circular blade that is spun by a chainsaw motor. Other projects have included building a laser guided drone that drops steel darts, creating a hammer that uses blank rounds to drive nails, and mounting a submachine gun to a robot dog.

Many of Apollonov's projects have gained widespread media attention in Australia, including his trip to North Korea to get a haircut, his successful attempt to enter Star casino in Sydney with overt COVID-19 symptoms, and for recreating the Utah monolith in Australia. His content is often uploaded by the comedy group The Chaser, and has collaborated with other internet celebrities and YouTubers including Boyinaband, Maxmoefoe, William Osman, IDubbbz, Hasan Piker, and the comedy group Aunty Donna. Many of Apollonov's videos also star fellow comedian Aleksa Vulović, as the two are close friends and often work on their individual projects with help from each other. Apollonov also has an X following of 231,900 followers.

In May 2022, Apollonov participated in the Creator Clash event set up by fellow YouTuber Ian Jomha (iDubbbz) alongside many other YouTube personalities. He fought against James Rallison (TheOdd1sOut) and won.