American Male/female
100

What singer achieved 14 Grammy awards, a blonde, and her fans are called "Swifties" 

Taylor Swift

200

which singer released the song "Taste", a blonde and was born in May 11 1999.

Sabrina carpenter 

300

Which male singer released the song "Back to friends" a brunet, born in New York city and has a Grunge and goth style 

Sombr (Shane Boose)

400

which female singer has an amazing whistle note, a blonde and released a song called "All I want for Christmas"?

Mariah Carey