Conversation so far:
Is Unia and The Days of Grays a musical band?
On May 25, 2007, Unia was released.
The album's first single, "Paid In Full", was released on April 27, 2007.
Was the album a hit?
CANNOTANSWER.

Question: Who were the artist?
Self-contained rewrite: Who were the artists for the single Paid in Full?