for nearly three years, just over a month after coming out of rehab and reaching a divorce settlement.
revellers at San Diego's House of Blues nightclub, lip-syncing her way through a handful of her most popular hits, local media reports said.
which Spears gave birth to her second child, filed for divorce and bizarrely shaved her head before checking into a rehab clinic.
wildfire on the internet in the days leading up to the event.
show.
"It wasn't a good move for her career," ticket-holder Mackenzie see.
"
But one female fan was impressed.
"I think she worked the stage, her body looked great. So it was good to see her finally come back and prove us all wrong," she told Los Angeles television station KNBC.
another chart-topping success the following year, Oops! ..
. I According to Time magazine, Spears has sold more than 76 history.
fans, her personal life has become a favourite topic for debate in an insatiable entertainment media.
Timberlake made her a prime tabloid target, not least because she raunchy lyrics and dance routines.
