Rod Stewart, 76, and Sean Stewart, 41, both pleaded guilty to misdemeanor battery during a hearing at the Palm Beach County courthouse on Dec. 17, the Palm Beach Post reported. The singer and his son, who were involved in an altercation with a security guard at a Palm Beach hotel in 2019, didn’t appear at the court in person, but their attorney, Guy Fronstin, did and entered the plea on their behalf, the outlet also reported.