Before Beyoncé Knowles performed "At Last" for Barack and Michelle Obama's first dance as President and First Lady in January, the singer – who has said her onstage alter ego is the aggressive Fierce – was overcome by emotion.
"I had to tell myself, 'They asked you to do this. You have to do a great job. This is their history. Calm down. Calm down,'" she admits in the June issue of Marie Claire. "I barely made it. Literally seconds before the song started, I was crying like a 5-year-old."
But she remains proud of that moment – and all of her accomplishments so far. "Fifteen years from now, I want to be able to look back and say 'Wow.' That's where I was at 27. That was my best."
And it certainly has been a big year: Last April, she married Jay-Z, 39, and the busy couple work hard to spend time together. "We try to sync our calendars," Knowles says. "I started working on my tour a year ago just to make sure that I had time at home. But you know, that's part of it. Any other woman who has to go to work and pick up the kids and make dinner – that's way harder than what I have to do. At least I can say I'm taking two weeks off and really take two weeks off."
She might even be ready for a longer break. "My priorities are slowly changing," she reveals in the interview. "So after this tour I might be tired and want to take two years off. I've worked hard enough to be able to do that. I'm in a very good place."
Who also might welcome a break from touring? Her mother, Tina, who accompanies her on the road. Tina tells the magazine, "I'm always the person to make her go to bed."