Britney Spears dressed casually and debuted a red streak in her hair Sunday when running errands in LA with her boyfriend Jason Trawick. They had a low-key weekend of hanging out on the West Coast after traveling to Las Vegas the previous Sunday, when Britney stole the show at the Billboard Music Awards. She performed there not once, but twice. Brit kicked things off doing a steamy duet with Rihanna before singing alongside her tour mate Nicki Minaj. Travels for Britney and Nicki commence next month in Sacramento. Britney, though, just announced new stops on her itinerary. Her September and October will be spent traveling between dates in Europe and Russia, though no word yet on if Nicki will join that leg as well.