The twins are from the Long Valley region of Washington Township, Morris County, New Jersey.

[11] In June 2018, the twins formed The Sister Squad with fellow YouTubers James Charles and Emma Chamberlain.

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.

[17] MTV's Total Request Live reboot added the Dolan Twins to the show's lineup as correspondents, and to provide on-air hosting duties across platforms.

[18] It was announced in August 2018 that the twins had directed a music video for the Australian alt-pop group Cub Sport.