Lady Gaga slams Arizona immigration law during Phoenix concert

"We have to be active. We have to protest.  . . . I will yell and I will scream louder," the 24-year-old pop sensation told the sold-out audience at the US Airways Center. "I will hold you, and we will hold each other, and we will peaceably protest this state."

Polls find a majority of Americans support Arizona's SB 1070 law, which cracks down on illegal immigration, but the law has become a charged issue for critics and supporters alike.

A federal judge blocked the part of the law - which went into effect July 29 - that allowed police to detain people on suspected of being illegal immigrants as a violation of the constitutional ban on unreasonable search and seizure.

During Saturday's concert, Lady Gaga told the crowd about a boy she met earlier in the day who's home was raided over "a parking ticket or something," and whose brother was deported to Mexico, the newspaper reported.