Walter Williams, Eric Grant and Eddie Levert of the O’Jays perform in Las Vegas on July 23, 2016.
David Becker/Getty Images for Nu-Opp, Inc

Now, when you upset the O'Jays, you know you've done wrong. And Donald Trump has now become the recipient of a letter from the group, requesting that he stop using their music.

At last week's Republican National Convention, the GOP presidential nominee used the band's No. 1 hit "Love Train" for his song "Trump Train" without the band's consent. And then this week, Rep. John Mica (R-Fla.) used the O'Jays' "For the Love of Money" for a pro-Trump video. Now the group is sick and tired of being mixed into politics it's not behind.

Attorneys for group members Eddie Levert and Walter Williams sent a cease and desist letter to both Mica and Trump.

“We don’t appreciate having our music associated with a campaign that is hurtful to so many with whom we have common ground,“ said Williams. “We’ve really had enough of this. I’m living proof that America is already great; I came from nothing, and every day I feel blessed to live in the greatest country on earth. We support those who inspire in a positive way, as opposed to bullying and using scare tactics.”

Of course, neither Trump nor Mica probably cares.