During a concert in Seattle on Friday, rapper Macklemore garnered a whole lot of criticism for his choice costume with some pegging the rapper as "anti-Semitic" because of it.

For the opening of an exhibit at Seattle's EMP Museum called, "Spectacle: The Music Video," Macklemore came out in costume and made no reference to the meaning behind his antic.

Immediately people took to Twitter to express how they felt about the Grammy Award winner's choice attire.

"For those who don't know, ?@macklemore performed Thrift Shop dressed as a racist Jewish stereotype. idiot."

Another said, "Check out ?@macklemore performing "Thrift Shop" as a stereotypical Jewish man. So much for same love, eh?"

Actor Seth Rogen, upset with the rapper's appearance, chimed in and with a comment on Twitter. "?@macklemore, first you trick people into thinking you're a rapper, now you trick them into thinking you're Jewish?" he wrote.

(Photo : twitter)

After the performance made headline news, the rapper decided to clarify his costume. "A fake witches nose, wig, and beard = random costume. Not my idea of a stereotype of anybody," he explained.

?Rogen apparently not buying Macklemore's tweet responded to the rapper and said, "@macklemore really?? Because if I told someone to put together an anti Semitic Jew costume, they'd have that exact shopping list."

Watch a clip of his performance below: