HEAT grill to medium-high heat.
THREAD chicken alternately with pineapple and peppers onto 8 long wooden skewers, using 2 skewers placed side-by-side for each kabob.
MIX barbecue sauce and juice concentrate; brush half evenly onto kabobs.
GRILL 8 to 10 min. or until chicken is done, turning and brushing occasionally with remaining sauce.
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