Lukasz "Dr. Luke" Gottwald's legal team subpoenaed Lady Gaga as part of the producer's defamation lawsuit against Kesha, who has, in her own lawsuit, accused Dr. Luke of sexual assault.
"In connection with Dr. Luke's defamation
This article originally appeared on www.rollingstone.com: Lady Gaga Subpoenaed Over Dr. Luke’s Defamation Lawsuit Against Kesha