Following is a summary of current entertainment news briefs. Justin Bieber strips down voice, heartache on "Believe Acoustic" LOS ANGELES (Reuters) - Justin Bieber is stripping down. Musically, that is. The Canadian pop phenomenon showcases his vocal and song-writing talents with a new acoustic album, out on Tuesday, that also features three new tracks including a heartbreak ballad thought to be about his former girlfriend Selena Gomez. Oscar nod for protest film cheers Palestinians