By Brandon Stosuy For their first U.S. show in close to a decade, Portishead showed up as a chilly six-piece, delivering Coachella's set to beat: Beth Gibbons, intense in black, looked both devastated and triumphant while Geoff Barrow rotated between drums/electronics/turntables, and Adrian Utley manned various guitars. The Bristolers brought it -- both the sound and their performances were great. ...