This week our favorite stars were all about letting loose and having a good time — at work and at play. Selena Gomez showed off her hot bikini body in Miami, while Matt Lauer used Today's Halloween episode to prove he's man enough to rock an iconic swimsuit. President Barack Obama and First Lady Michelle Obama handed out candy to children visiting the White House, and Kim Kardashian had fun at Six Flags. Meanwhile, Orlando Bloom and Miranda Kerr showed us why they will always be family. Check out all that and more in this week's best pics!