In the email -- obtained by TMZ -- Pebe Sebert complains that Luke screwed her out of music publishing rights connected to her daughter. She then says:
"We, me and Kesha and her friends, like Lady Gaga, are going to make all of this Really PUBLIC, in the next few days. Luke date raped Kesha when she was 18. Nicky Hilton's birthday? Paris Hilton's house? Luke gave Kesha pills. She ended up naked in his hotel room 2 days later. No longer a virgin?"