Rolf Jacob Sartorius (/sɑːrˈtɔːriəs/; born October 2, 2002) is an American singer and internet personality, who rose to fame via social media from posting comedic videos on Vine and lip-syncing videos on musical.ly and TikTok. In 2016, he released his debut single "Sweatshirt", which reached a peak of 90 on the Hot 100 chart in the United States. Jacob Sartorius was the 9th most searched musical artist of 2016.
On January 20, 2017, Sartorius released his debut extended play The Last Text which consisted of eight songs. The EP charted in the album charts in the United States, Canada, Scotland, New Zealand, Ireland and Australia. His debut concert tour The Last Text World Tour, took place the same year. He then released his second EP, Left Me Hangin'. In November 2018, Sartorius released his third EP, Better With You. Then on May 31, 2019, he released his fourth EP, Where Have You Been?, which, like his previous three releases, failed to make any chart impact worldwide.