Hip-hop mogul JAY-Z and basketball icon LEBRON JAMES took time out of the NBA All-Star Weekend festivities in California on Sunday (20Feb11) to help renovate a local gymnasium for a children's charity. The two stars have been big supporters of the Boys & Girls Club of America in recent years and they joined youngsters in Los Angeles this weekend to unveil the improvements to the run-down community facility. The pair also donated a colourful wall mural by famed tattoo artist Mr. Cartoon and spent time chatting with the kids before attending the big basketball game at the Staples Center.