YouTube star from Chicago who has accumulated over 16 million subscribers to his self-titled channel. He was also popular on the 6-second video app Vine, where he earned more than 1 million followers. In 2019, he began judging on Nickelodeon's America's Most Musical Family.
He posted his first video to Vine on April 3, 2013.
His YouTube channel features several videos from the Vlog Squad, a group of other former Viners. He was previously part of a collaborative YouTube channel called Second Class. In 2017 he won Breakout Creator at the Streamy Awards.
He was born in Kosice, Slovakia and moved to Chicago, Illinois at a young age. He has three siblings, Ester, Sarah and Toby. He dated Liza Koshy for nearly three years before their breakup in 2018. In 2019, he was briefly married to Lorraine Nash, the mother of Jason Nash, after Jason joked to David that he'd never get married.