Britney Spears took to the stage for the first time in almost three years last night (01May07) - but the California show was dogged with speculation she mimed her songs to overcome nerves. Wearing a brunette wig, boots, a pink bra top and a short white skirt, Spears kicked off her brief five-song comeback at San Diego's House of Blues with hit single Baby One More Time. But while the packed audience, who had paid upward of $125 (GBP62.50) per ticket, seemed largely impressed with the gig, some were disappointed the Toxic star appeared to have mimed throughout the set. Fan Morgan Segall, who had flown in from San Francisco for the concert, says, "It looked like she lip-synched her way through the whole thing." The gig had been advertised as unknown band The M+Ms but internet gossip sites were rife with rumours the name was a cover for the troubled pop princess. In all, the show lasted just under 20 minutes, but The M+Ms have two other concerts scheduled at House of Blues venues in Southern California - one in Anaheim tonight (02May07) and the other tomorrow (03May07) in West Hollywood, according to the club's website. Earlier this year (07), Spears told fans of her plans for a career comeback in a posting on her own website, writing, "I look forward to coming back this year bigger and better than ever." She is reportedly recording her fifth album.