For those about to jog, we salute you. More than 17,000 competitors will take to Brooklyn's streets as the popular Rock 'n' Roll Marathon Series returns to the borough of Kings. In addition to the race itself, the weekend's events will include musical performers along the course. Nate Ruess of the band Fun was the headliner last time around; stay tuned for details about this year's entertainment. To register, visit runrocknroll.com.