Aerosmith have formally requested that Donald Trump does not play one of their songs while he campaigns.

The Republican has been using the band's song 'Dream On' as he continues his quest to become US president.

However, the group have now sent his team a cease-and-desist letter to ask Trump to stop playing the track.

They claim it "gives a false impression" that Aerosmith support Trump's bid.

Singer Steven Tyler, who is behind the legal move, is actually a registered Republican.

However, he says it is not a "personal" issue and more of a disagreement over permission and copyright.

Neil Young and REM have both previously spoken out after Trump used their music.

Opinion polls have placed Trump as the frontrunner for nomination to be the Republican Party's presidential hopeful for the election in November 2016.

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Watch Aerosmith in action below: