The 'Shark Tank' star warned celebrities who get political, such as the Grammy-winning singer, to "shut your mouth."

"No one is illegal on stolen land," the 24-year-old said in her acceptance speech for Song of the Year on Sunday night.

Finneas called out the 'very powerful old white men' he says are 'outraged' by sister Billie Eilish's Grammys speech: 'We can literally see your names in the Epstein files.'

Finneas O'Connell defended his sister Billie Eilish after she faced backlash for her anti-ICE Grammys speech, calling critics "powerful old White men" and referencing the Epstein files.

After winning song of the year at the 2026 music awards show, Eilish used her time on stage to slam ICE: "No one is illegal on stolen land."

In her speech on Sunday, the “Bad Guy” singer declared, “No one is illegal on stolen land. … F–k ICE. That’s all I’m going to say.”

Following the Grammys ceremony, O'Leary appeared on Fox News' America Reports on Tuesday, Feb. 3, and advised Eilish that, "Half the people in politics that you piss off won’t buy your music anymore. Don’t be stupid about it, but hey, they don’t listen."

Mark Ruffalo came to Billie Eilish’s defense after the singer faced criticism from Kevin O’Leary over her anti-ICE comments at the Grammys.