Instagram sensation from Whittier, California who has earned over 1.2 million followers to her account. She was also popular on Vine with over 230,000 followers. Her theesierradallas musical.ly account has accumulated more than 600,000 fans.
She graduated from California State Polytechnic University with a degree in communications. She began beauty vlogging in September 2014.
She worked for YMI Jeans and ApparelDeals. She produced a YouTube video featuring her brother in which they did a makeup challenge, the video was viewed over 1 million times.
She attributes her social media addiction to her brother Cameron Dallas. She was raised by her mother Gina Dallas. In 2017, she got engaged to Brent Mallozzi. They married in June 2018. They have a nephew named Luca.
Through her brother, she has met fellow internet sensations such as Nash Grier.