Not everyone is a fan of Donald Trump and Aerosmith didn't mince words about it, either. According to Rolling Stone, Steven Tyler's reps sent the Republican frontrunner a cease and desist letter over the use of their song, "Dream On", at rallies, the latest among a growing list that included Neil Young and R.E.M.

The letter, via The Hollywood Reporter read, "Trump for President does not have our client's permission to use 'Dream On' or any of our client's other music in connection with the Campaign because it gives the false impression that he is connected with or endorses Mr. Trump's presidential bid."

This isn't Trump's first warning from Aerosmith's frontman, either. Reports said that the mogul was asked to refrain from using the song the first time in August, where he air-drummed along to the song at a rally at Mobile, Alabama. Upon learning that he still continued using Aerosmith's song, Tyler's reps gave him a 24-hour window for his team to find a new song to sing to, adding that "If Trump for President does not comply with our demands, our client will be forced to pursue any and all legal or equitable remedies which our client may have against you."

Of course, it is not rare for things like these to happen, but what's surprising about this particular case is that Aerosmith guitarist Joe Perry has said in a previous interview that he's "definite old-school Republican". Tyler was also reported to be Trump's personal guest during his first GOP debate in August. He also served as a judge at Trump's Miss USA pageant.

However, The Washington Post found out that the cease-and-desist were not sent for political or personal issues with Trump. Rather, it is a decision based solely on permission and copyright, leading the magazine to believe that perhaps Tyler and the band want to be compensated for providing the track for Trump's campaign.

While Tyler had his PR team voice their distaste to Trump's use of their song, REM singer Michael Stripe chose the more colorful way. He said in a statement via their bassist, Mike Mills's Twitter: "Go fuck yourselves, the lot of you -- you sad, attention-grabbing, power-hungry little men. Do not use our music or my voice for your moronic charade of a campaign."

Neil Young, on the other hand, said through his spokesperson that "Donald Trump was not authorized to use 'Rockin' in the Free World' in his presidential candidacy announcement." The statement went on to say that Young, a Canadian citizen, is a Bernie Sanders supporter.