Beyoncé used her own name, Beyoncé, for the 2003 debut solo album era.
Dangerously in Love was credited to Beyoncé rather than to a separate stage character. The album presented her as a solo artist following the success of Destiny’s Child and included collaborations with Jay-Z, Sean Paul, and Missy Elliott. Its title and songs emphasized romantic intensity, vocal performance, and a more personal artistic identity.
Beyoncé later introduced Sasha Fierce as an alter ego associated with her 2008 double album I Am... Sasha Fierce. That distinction is the source of a frequent mix-up: Sasha Fierce belongs to a later creative period, not the debut album era. “Yoncé” is also used as a nickname and appears in later song lyrics, but it was not the credited stage name for Dangerously in Love.
The debut established a pattern in which Beyoncé could separate album concepts, visual personas, and her formal artist credit while remaining publicly known by her first name.