guess the kpop group/soloist from their songs

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Across
  1. 3. punch, kick it, back 2 u
  2. 4. psycho, dumbdumb, russian roulette
  3. 5. the boys, gee, oh!
Down
  1. 1. nobody, why so lonely
  2. 2. boss, work it, misfit, make a wish