There must be something in California’s water supply (hopefully not lead), because two of the state’s sharpest young rappers have suddenly gone all Superman on us. Kendrick levitated through the streets of Los Angeles in last year’s best video. Now 2015’s breakout rap star Vince Staples finds himself floating with the seagulls over his hometown of Long Beach — literally. In his new video for “Lift Me Up,†Staples gets so dizzy from staring at static on the TV that he ends up going airborne, taking rapping circles to whole new heights.