LOS ANGELES, April 28 (UPI) -- The Rolling Stones played an impromptu gig at a club in Los Angeles as part of a warmup to the launch of their "50 and Counting Tour."
The gig was announced Saturday on Twitter, a mere hours before the performance at the Echoplex nightclub, the Los Angeles Times reported.
A few hundred tickets were sold for $20 each.
Unable to get into the club, a couple dozen fans gathered on rooftops hoping to glimpse the rockers as they exited the club after the show, the newspaper said.
Just before 11 p.m. band members -- Mick Jagger and Charlie Watts dressed in terrycloth robes -- exited the club and stepped into a caravan of cars and vans.
"It's like a presidential motorcade!" a fan said of the luxury vehicles.
The Rolling Stones' tour kicks off Friday at Staples Center in Los Angeles, the Times said.
