If there's one thing Michelle Obama loves to advocate, it's promoting young girls' education.

CBS reports that during Glamour magazine's "The Power of an Educated Girl" conference held Tuesday at the Apollo Theater, Mrs. Obama gave a piece of advice for school girls: "Compete with the boys. Beat the boys," she said.

The event also coincided with one of the First Lady's signature advocacies, "Let Girls Learn", a campaign that helps girls stay motivated for education.

According to report by Huffington Post, Obama was also asked about boys' anti-intellectualism that affects a girl's self-perception. The First Lady responded that, by all means, negative people should be cut from their lives, "whether [it's] your best friend or your boo," she said.

"There is no boy at this age that is cute enough or interesting enough to stop you from getting your education," Obama said. "If I had worried about who liked me and who thought I was cute when I was your age, I wouldn't be married to the president of the United States today."

People Magazine reports that actress and activist Charlize Theron, who is also part of the panel, apparently got a nod from Obama when "turn-offs" and "girls' intellectualism" were discussed during the event.

The actress and the First Lady shared the same views when they were asked about the advices they could give for girls who are afraid to be smart because they can intimidate men.

"There is nothing sexier than a smart woman," Theron told the crowd.

"And let's just be clear you don't want to be with a boy that's too stupid to know you're a smart, young lady and I want to encourage all of us as young women, as older women, we have to raise our own bars, you will not be successful hanging around people who drag you down," Obama said after Theron.

Mrs. Obama moreover stressed the importance of education in her pep talk, citing that 62 million girls worldwide are unfortunately missing the privilege of education. Three days before her talk in Apollo Theater, Obama launched #62MillionGirls, a social media campaign that encourages everyone to tweet about what they have learned at school along with their photos, NBC News reports.

More than a thousand privileged school girls were able to attend the event, which also had other venerable speakers like former Australian Prime Minister Julia Gillard, Plan International girl advocate Nurfahada, and actress-activist Sophia Bush.