Photo: Mazur/WireImage

U2 are holed up in Barcelona preparing for the launch of their 360° Tour — and we’ve got proof in our roundup of the week’s best live shots. Check out Lady Gaga’s flaming bra after the jump, and our live gallery for Metallica, Faith No More, Blur, Bon Jovi, Phoenix, Cheap Trick and many more.

Plus, Rihanna in court, a Jonas Brothers on Capitol Hill, Britney Spears in Target, and Beyoncé and Jay-Z onstage — together — in Random Notes.

• The Week in Live Shots: U2, Lady Gaga, Bon Jovi and More

• Random Notes: Jay-Z, Beyonce, Bon Jovi, Spinal Tap and the Week in Rock

Photo: Pimentel/WireImage