Even with an injured rotator cuff, Mario Lopez rocked the Zappos.com Rock ‘n’ Roll 1/2 of the 1/2 and finished with fans who ran over to take selfies with the TV host after their memorable run. Mario was most excited to run RNR Las Vegas because he loves to run at night and what better place to do it then on the Las Vegas Strip! Favorite artist on his running playlist: Avicii.