Officials at the Human Rights Foundation have called on the two acts and Jason Derulo and David Guetta to call off concerts at an upcoming music festival following the murder of journalist Jamal Khashoggi.
High-ranking officials have been implicated in the death of the newsman and activists around the world are demanding answers from crown prince Mohammed bin Salman.
And HRH bosses insist it's the wrong time for western pop stars to perform in Saudi Arabia.
"It is outrageous that these artists, who millions of people admire and idolize, have agreed to do business with the murderous regime of MbS (Mohammed bin Salman)," the Human Rights Foundation chairman Garry Kasparov - the former chess champion - says in a statement.
The Black Eyed Peas, Iglesias, Derulo, OneRepublic, and Guetta are set to perform at the Saudi Ad Diriyah E-Prix.
"The hypocrisy of these musicians, who have previously called upon their fans to stand up for social justice and human rights, will destroy their credibility and reputation," Kasparov adds.
"They must cancel their performances immediately and apologize not just to their millions of fans, but also to the thousands of people who have been unlawfully imprisoned and tortured at the hands of the Saudi government."
Read our statement on why @enriqueiglesias, @bep, and @davidguetta should not be playing a concert for the dictatorship of Saudi Arabia -- they should be supporting artists and journalists instead: https://t.co/m6WDcVO2Km— HRF (@HRF) November 30, 2018
Representatives for the artists under attack have yet to respond.