While many think of Boomer as the tiny, headphones-clad, newborn from the Rio games, he's set to celebrate his fourth birthday on May 5... and he probably has way more Instagram followers than you. As the only one of Michael's kids who got to see his dad win gold medals, it's no surprise that he's amassed nearly 650,000 followers on Instagram — most of which he got before he could walk.

These days, Boomer is an older brother and he's now in school, so he's much too busy to remain on the sidelines of the pool. Unfortunately, the comments section of his Instagram page is also flooded with "OK Boomer" jokes.