The Party In The USA singer has hit back at the actions of the country's president, and called for people to show compassion for all people.
Taking to Instagram, she posted an artistic collage of four images of the Statue of Liberty - each coloured either red, yellow, blue and green and captioned it with hearts of the same colours.
The picture carries the words: "STAND WITH IMMIGRANTS."
Meanwhile, her fellow pop superstar Rihanna has also joined the number of famous faces making noise against the president's decision.
In a scathing rant against Trump, she tweeted: "Disgusted! The news is devastating!
"America is being ruined right before our eyes! What an immoral pig you have to be to implement such BS!! (sic)"