Shaira Mae Dela Cruz was born on May 3, 1995, in Las Piñas City, Philippines.

Her involvement in the entertainment industry began at a young age, participating in singing and dancing competitions at school and in her local community.

[1][2] Diaz finished a degree in Marketing Management at University of Perpetual Help System DALTA in Las Piñas.

[4] Diaz started her acting career when she joined the talent show Artista Academy of TV5, where she finished as one of the finalists.

In 2015, she starred in the Baker King, which is the Philippine adaptation of the 2010 Korean drama Bread, Love and Dreams.