Maria De La Rosa , a singer who went by the name DELAROSA, was fatally shot inside a parked car in Los Angeles ... and it sounds like the bullets pierced her abdomen.

TMZ obtained dispatch audio from early Saturday morning's fatal shooting in the San Fernando Valley ... and you hear the dispatcher say the victim is a Hispanic female in her 20s with a gunshot wound to the abdomen.

The dispatcher says the victim is in critical condition in the emergency room at Northridge Hospital Medical Center ... and there are friends standing by waiting for updates in the family room.

Cops say witnesses claim they saw two male suspects approach a parked car on Bryant Street in Northridge and open fire. The suspects remain at large ... in the dispatch audio, they are described as 2 male Hispanics

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