The roster for the Coachella festival (pictured) has Drake, AC/DC and Jack White as headliners; Mica Levi conducts a live performance of her award-winning movie score; a look at the latest gadgets debuting at the Consumer Electronics Show; an effort to expand Wikipedia entries for African-American artists.
Coachella lineup; Mica Levi gets 'Under the Skin'; CES overview; Wikipedia diversity

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