The songwriter's composition, "Til It Happens to You," sung by Gaga, was nominated for an Oscar Andrew H Walker/WWD/Penske Media via Getty Diane Warren and Lady Gaga channeled their pain into power.

The songwriter's composition, "Til It Happens to You," sung by Gaga, was nominated for an Oscar Diane Warren and Lady Gaga channeled their pain into power. In the intimate documentary Diane Warren ...