Jimmy Buffett Back in the Sling of Things

2/1/2011 9:30 AM PST

Jimmy Buffett Update -- Back in the Sling of the Things

Nearly a week after falling off the stage at a concert in Australia, Jimmy Buffett was spotted in L.A. on Monday ... standing upright, with his arm in a sling and talking on his cell phone.

The 64-year-old is good at multitasking ... sort of.