Lady Gaga is firing back at President TrumpDonald TrumpThe Hill's Morning Report - Presented by Facebook - White House, Dems play blame game over evictions The Memo: Left pins hopes on Nina Turner in Ohio after recent defeats Biden administration to keep Trump-era rule of turning away migrants during pandemic MORE after he tied her alleged stance on fracking to her support of Joe BidenJoe BidenThe Hill's Morning Report - Presented by Facebook - White House, Dems play blame game over evictions GOP skepticism looms over bipartisan spending deal Biden vaccine rule sets stage for onslaught of lawsuits MORE.

The 34-year-old "Rain on Me" singer is poised to campaign with the Democratic presidential nominee in swing-state Pennsylvania on Monday, joining him at a drive-in rally in Pittsburgh. She released a series of videos and social media posts in recent days voicing her support for the former vice president.

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Trump took notice, tweeting early Monday morning:

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The performer, born Stefani Germanotta, responded to an earlier statement from Trump campaign communications director Tim Murtaugh that dubbed her an "anti-fracking activist" and knocked Biden as prioritizing "the desires of the liberal Hollywood elite and the radical left."

Gaga was reportedly part of a group called Artists Against Fracking founded by Yoko Ono in 2012.

Trump and his campaign have consistently argued that Biden would end fracking if elected, a move they say would hurt voters in states such as Pennsylvania.

Biden has insisted he would not ban all fracking. The ex-VP has proposed banning new gas and oil permits on federal land, which only accounts for a small percentage of the industry.