The human rights group's statement came Friday on the heels of criticism the singer received for singing "Happy Birthday" to Turkmenistan President Gurbanguly Berdimuhamedow, who is accused of human-rights violations, The Hollywood Reporter said Friday.
Lopez's publicist said her performance in Turkmenistan wasn't political in nature and "had there been knowledge of human-rights issues of any kind, Jennifer would not have attended."
Human Rights Foundation President Thor Halvorssen said Lopez took money for "serenading crooks and dictators" in Russia and a number of other Soviet republics before the Turkmenistan performance.
"The 'Jenny-from-the-block-who-doesn't-Google' clarification may be credible in one instance, but it beggars belief in light of a pattern of repeated behavior," he said.
The statement said Lopez was paid to perform for Chechen President Ramzan Kadyrov, who is accused of human-rights abuses, and allegedly corrupt Russian businessman Telman Ismailov. The statement said Lopez had made arranegments for a music festival with Azerbaijan dictator Ilham Aliyev.