Radio icon Elvis Duran recently spoke about how Madonna was one of the toughest interview subjects he's had in his career.

Numerous pop artists have cycled through Duran's syndicated radio show over the years from Lady Gaga to Adele to Mariah Carey, but he had some difficulties interviewing one the biggest pop stars on the planet: Madonna.

"She was one of the most difficult interviews I've ever done," Duran revealed to People recently. "I was disappointed. She just wouldn't give a straight answer. Maybe she wanted to be a bad girl just for the sake of being a bad girl. But while I didn't love it, I'd still love to keep interviewing her. I want to get it right!"

While some may consider his comments a bit shady toward the pop legend, Duran clarified that this doesn't lessen her great impact on music.

"She's a pioneer," he said. "She pioneered that superstar edge that says, 'I'm going to do it my way and succeed no matter what anyone says.' And as much crap as she got for being herself, she never strayed. She was always true to herself."

Madonna is coming off a fiery speech at the Billboard Women in Music event, where the Rebel Heart singer accepted the award for Woman of the Year.

"I stand before you as a doormat. Oh, I mean a female entertainer," she said at the event, held earlier in December. "Thank you for acknowledging my ability to continue my career for 34 years in the face of blatant misogyny, sexism, constant bullying and relentless abuse."

She went on to explain the various cynical lessons she's learned about being a female artist in the music industry, delivering some scathing truths.

"If you're a girl, you have to play the game...You're allowed to be pretty and cute and sexy, but don't act too smart. Don't have an opinion. Don't have an opinion that is out of line with the status quo, at least," she explained, of what she has learned from the business. "You're allowed to be objectified by men, and dressed like a slut, but don't own your sluttiness, and do not, I repeat, do not share your own sexual fantasies with the world."

The speech also featured Madonna paying tribute to some of her fellow music legends that have died over the past few years, including David Bowie, Prince, Whitney Houston, Michael Jackson, Tupac Shakur and Amy Winehouse. After listing off the various legends we've lost, she noted, "I'm still standing. I'm one of the lucky ones."