Marc is pissed off and bluntly called out Trump, saying ..."Mr. President shut the f**k up about NFL. Do something about our people in need in #PuertoRico. We are American citizens too."
The singer's anger stems from the humanitarian crisis in the wake of Hurricane Maria. The island's power grid remains crippled, a massive dam is crumbling, hospitals don't have running water and there's extremely limited communication.
Marc has joined his ex, Jennifer Lopez's efforts to send aid to the island -- but, clearly, he's screaming for POTUS to get on board too.