Rock band, Queen, is upset that Donald Trump ignored their wishes and used its signature song during his introduction at the RNC on Monday night.

Trump used the song “We Are the Champions” when he walked onto the stage to introduce his wife, Melania.

On Tuesday, Queen voiced it frustration on Twitter:

This isn’t the first time that the band has been upset over Trump using one of its songs without its permission.

In June, the band’s lead guitarist, Brian May, wrote that Trump had not asked for permission to use the song during his campaign.

“My personal reaction to Donald Trump using our music? We’d never give permission,” May wrote on his website. “We are taking advice on what steps we can take to ensure this use does not continue.

May added that despite what the band thinks of Trump’s platform it “has always been against our policy to allow Queen music to be used as a political campaigning tool.”