In this photo taken May 16, 2014, Macklemore of the group Macklemore & Ryan Lewis strikes a pose as he performs "Thrift Shop" to a mob of waving fans during Vivid: Spectacle Opening Night Party at the EMP Museum in Seattle. (AP Photo/The Seattle Times, Lindsey Wasson) SEATTLE OUT; USA TODAY OUT; MAGS OUT; TELEVISION OUT; NO SALES; MANDATORY CREDIT TO BOTH THE SEATTLE TIMES AND THE PHOTOGRAPHER.
MackIemore rejoiced during his performance on Friday but soon afterward back-tracked on his choice of clothing for the performance, which some saw as anti-Semitic.
AP

Rapper Macklemore is under fire for his choice of attire during a concert on Friday in his hometown of Seattle.

The Grammy Award winner stepped on stage wearing what some took to be an anti-Semitic costume.

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The rapper disagreed with those sentiments.

Macklemore took to his web site on Monday to issue a formal apology to his “family, friends and fans alike.”

On Friday night we had a surprise show at the EMP Museum in Seattle. Earlier in the day I thought it would be fun to dress up in a disguise and go incognito to the event, so that I could walk around unnoticed and surprise the crowd with a short performance. I picked up a bunch of fake mustaches and beards and grabbed a left over wig from our recent trip to Japan.

As it turns out the fake noses they sell at the costume store are usually big (my nose didn?t fit most of them). So I ended up with a big witch nose. I went with a black beard, because that?s the furthest color from my natural hair. Disguise was the intention. I personally thought I looked very ambiguous in terms of any "type" of person. Some people there thought I looked like Ringo, some Abe Lincoln. If anything I thought I looked like Humpty Hump with a bowl cut.

This latest episode could be overlooked by many if it were not for Macklemore’s history of doing “some stupid things in the past,” reported The Daily Beast, which called the rapper a “9/11 truther.”

The Daily Beast ran down Macklemore’s previous social blunders, beginning with some choice lyrics from “Bush Song,” which was released in 2005.

"Where's Dick Cheney at? Probably off in Iraq / Findin' some oil to tap, tell 'em I got up on that / And y'all still think it was bin Laden / When it was us and the Masons, plottin' on oil profits."

Macklemore already isn’t in the best of standings with some of his more popular fellow rappers, including Drake — who is half Jewish — and Kanye West, who both question his authenticity in hip-hop and took umbrage to the fact that Macklemore took home the Best Rap Album award at this year’s Grammys.

Given all of his past antics, “costume-gate” doesn’t seem to be the best addition to Macklemore’s growing resume.