• One "America's Got Talent" contestant called Heidi Klum a "tramp" during his set
  • Klum didn't find the comedian's performance funny
  • Sofia Vergara said that the contestant chose a very risky theme for this performance

Heidi Klum was visibly not amused when one of the contestants of "America's Got Talent" called her a "tramp" during his performance.

Usama Siddiquee, the Bengali-American stand-up comedian took the stage on Tuesday and made a hilarious performance by picking up the resemblance of his name to terrorist Osama Bin Laden. He shared an uncomfortable encounter at the airport when a friend yelled his name and made it worse by adding, "Oh my God, I thought you were dead."

Klum maintained a serious face while Howie Mandel and Sofia Vergara laughed. Siddiquee transitioned from the airport encounter into club music and feminism. He said that the DJ can say anything he wants as long as he adds a beat drop. For example, DJs can say words like "women shoudn't vote" and "get back to the kitchen" and add some beat to it and it won't sound as bad.

"When that beat drops, so does feminism," Siddiquee added.

To prove his point, he turned to Klum and said, "Heidi, if I called you a tramp, you'd say, 'How dare you,' right?"

Siddiquee then beat boxed and said the word "tramp" repeatedly.

"You'd be like, 'Well, I do get loose on occasion,'" he added.

Klum maintained a straight face through Siddiquee's entire performance and never cracked a smile. When it was time for the judge to critique, Mandel spoke first.

He said it was tough because he loved Siddiquee’s energy and commitment and acknowledged that the comedian had a fantastic start. However, his take on feminism made it uncomfortable for the judge especially with Klum and Vergara beside him. Mandel then turned to Klum and asked the model what she could say about Siddiquee's performance.

"What did I think? I mean, I don’t know. I guess being called a tramp probably was my least uncomfortable part of the whole thing. But that’s just me. But let's see what America thinks," she said.

Meanwhile, Vergara said she was laughing at first and was confused mid-way on how she should feel about Siddiquee's jokes.

"You took a very risky theme for this performance," Vergara concluded.

When Entertainment Tonight's Kevin Frazier spoke with Klum about the routine, she said it wasn't funny for her.

"I actually think he's a very good comedian. I just didn't love his material so much today," Klum said

"It was just not for me. ...Also, it's hard to be a comedian now. What can you joke about still? ...To me, it was not so funny.”

The viewers on YouTube also have mixed reactions to Siddiquee's performance. Many found it hilarious but didn't consider it the best. Meanwhile, some said Klum was being too sensitive and another suggested that the comedian picked the wrong subject and should have chosen Vergara who came from "Modern Family" and is more inclined to comedies.

In related news, Simon Cowell has not returned to "America's Got Talent" yet after his electronic bike accident. But he might join his fellow judges soon.

America's Got Talent
“America’s Got Talent” (AGT) judges and audience were left horrified on Tuesday's episode, as a couple’s dangerous trapeze act went awfully wrong. In this photo, America's Got Talent Live: The All Stars Tour logo captured on the big screen onstage during opening night in Salina, Kansas, Oct. 6, 2015. Getty Images/ Fernando Leon