She had given Harry the video that would expose Ryley's violence towards her. It was a compilation of pictures showing her battered face when she got kidnapped, given to her by the same mysterious figure who gave her the drug that she used to spike Ryley's wine and send him unconscious to Scott Morrison's room.
And though Rachel knew Ryley wasn't the one who did it to her, she wouldn't waste this chance to frame him, just like how he framed her in front of their parents last time!
Harry had agreed to present the video during the final session, that's why Rachel was burning in excitement for the world to find out that Ryley wasn't as innocent as they have always thought!
"Here I will show you what motivates me to join this audition." Harry said, then stepped aside and nodded at the crew to play the video.