But don't worry, Fergie, you're in good company: The daytime talk show host also thinks Beyoncé needs autotune to sound good.
Though Williams is a fan of Fergie, who is also a "friend" to the show, she couldn't resist throwing some low-key shade the singer's way over her vocals at the NBA All-Star Game on Sunday night.
"There are only a few people who can sing raw dog and Fergie is not one, she needs autotune," said Wendy. "Jen Lopez needs autotune, Janet needs autotune, Beyonce needs autotune. Adele, Aretha, Celine, Dionne Warwick and Mariah, they need nothing. They sing raw dog."
That being said, the host didn't think the former Black Eyed Peas performer needed to say "I'm sorry" for her rendition.
"I don't feel like Fergie needed to apologize to anybody. You did it, you done it, and that's that," said Williams. "She did her jazzy version of the anthem at the NBA and everyone was upset and she released a statement saying she wanted to do something different and apparently different wasn't good."
"To me, she didn't need to apologize. To me, this will go away by next week this time because somebody's gonna come out of the closet or there will be another gun violence situation or something," she continued. "Maybe she apologized to gain sympathy, I have no idea. Fergs, you're the best."
"As Vanessa Williams would say, welcome to the comfort zone. This is where you know what you have, even if you don't want it all the time," she added. "You put that 4-year-old in the backyard with the dog!"
"I've always been honored and proud to perform the national anthem and last night I wanted to try something special for the NBA," Fergie said in a statement on Monday. "I'm a risk taker artistically, but clearly this rendition didn't strike the intended tone. I love this country and honestly tried my best."