The shooting happened around 1:42 a.m. on Sunday in the 9500-block of Merrill Avenue in the Pill Hill neighborhood.
Police said the celebration was ongoing when someone started to shoot at the group.
A man, 19, was shot in the neck and taken to the hospital in critical condition.
A woman, 22, was shot in the back and was taken to the hospital in critical condition.
A 27-year-old man was shot in the right arm and was taken to the hospital, he is expected to be okay.
A different 22-year-old woman was grazed in the right leg, however police said she refused medical attention.
No one is in custody. CPD Area One detectives are investigating.
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