The actress was spotted Tuesday in Los Angeles performing the stunt several times for the national commercial campaign. The advertisement, the company for which was not reported, is scheduled to air during the American Music Awards.
Meanwhile, the actress was spotted Friday taking in the sights in Rome with 26-year-old boyfriend Casper Smart, E! Online reported.
The pair were photographed play sword-fighting outside the Coliseum. Casper posted an Instagram video of himself at different landmarks, including the Trevi Fountain, the Vatican and the Sistine Chapel.