Who is this?

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1234
Across
  1. 2. A Vietnamese singer who just released a single called "Đại Minh Tinh"
  2. 3. A female singer whose last name is Swift
  3. 4. A Vietnamese singer who sings "Waiting for you"
Down
  1. 1. A female singer who is famous for a song called "Bùa yêu"
  2. 3. A music producer who has a type of food in her stage name