While the twosome (in Saint-Tropez in 2007) are known to kick back, their work ethic keeps them just as close. Between concert dates in India, Beyoncé admitted, "I'm supposed to be on vacation, but I've been in the studio because that's what I love to do." And she respects Jay-Z for the same commitment. When the rapper recently "unretired," she said: "I know when you love music that it's hard to get away ... I knew it would be difficult for him [to stay out of the studio] because it's a part of our makeup."