The twins are from the
Long Valley region of
Washington Township, Morris County, New Jersey. Since their beginnings, the duo has accumulated over 6.4 million followers on Vine and 11 million subscribers on
YouTube, and embarked on a world tour titled the "4OU" Tour in 2016. The duo was also involved in a
Twitter ad campaign for the social network's new stickers feature. At the
2016 Teen Choice Awards, the duo won the awards for Choice Web Star: Male and Choice
YouTuber. On March 27, 2018, the two announced a hiatus from YouTube through a video on their channel entitled
Bye For Now. In the video, they stated that they wanted to re-evaluate themselves creatively and focus on their lives outside of the platform. They later announced their return on May 1, 2018. In June 2018, the twins formed The Sister Squad with fellow YouTubers
James Charles and
Emma Chamberlain. The four uploaded simultaneous videos on their YouTube channels on June 19, August 28, October 31, and December 25, 2018, and were featured prominently in
YouTube Rewind 2018. The Sister Squad was nominated for a 2019 YouTube Ensemble
Shorty Award. The twins were nominated in several
Streamy Award categories from 2016 to 2019, winning Creator of the Year at the
7th Streamy Awards. Their father, Sean Dolan, died from cancer on January 19, 2019. He was fifty years old. On October 8, 2019, they uploaded a sixty-minute video titled ''It's Time To Move On...''. They explained the stress of their father's death, and that they intend to change the content of their channel and to a more flexible schedule. On January 14, 2021, they uploaded a podcast titled ''We're Moving On From YouTube
, onto their podcast channel Deeper with the Dolan Twins''. In 2023, they directed the short film
Nothing Left to Give, which depicted a farm family grappling with the loss of their mother. The film debuted at the 2023
HollyShorts Film Festival, and was subsequently uploaded to their YouTube channel. == Work outside of YouTube ==