John Mayer carried his own bags and guitar yesterday while arriving at a private recording studio in Santa Monica. The singer made a rather dapper arrival to LA last week and has since adapted to the California casual vibe. In his spare time, John's made a return to blogging and recently hinted that he may start writing new songs, though he hasn't confirmed any plans for his next album. He has, however, nailed down details for his charitable May 16 performance. He'll be playing a private show for 100 fans who ponied up $250 a ticket to attend with all proceeds benefiting the We Are Family Foundation and NCIRE and Fisher House organizations. John's been a longtime supporter of veteran groups, and this is just his latest event organized to benefit a philanthropic cause.