The troubled pop singer performed for the third time in one week, at the House of Blues on the Sunset Strip, Thursday night, which reportedly marked the end of her three-gig tour.

Sporting different looks, a new black wig, a mini skirt, pink bikini top and white furry jacket, a top-shape Britney Spears took the stage for another short performance, pretty much like her previous two.

Britney performed in front of a sold-out crowd, including none other than Lindsay Lohan, Britney's old party pal, who was spotted at a table on the Foundation Room/Vip balcony section. Also, among the concert-goers, the Olsen twins and Sean Paul were to be found.

While during her previous two gigs, at the House of Blues in San Diego and Anaheim, Britney lip synced through the same songs and dance routines, addressing just one line to the audience, in West Hollywood on Thursday, she gave her first live performance.

Britney’s last concert tour ended in summer 2004, when she announced she would take some time off to "just chill," but earlier this year, she wrote on her website: "I look forward to coming back this year bigger and better than ever."