Best Selling Artist of all time

Question

This all is approximate and calculated using the earned certification and not specific  amount of sales (Diamond= 10, Platinum=1, Gold=.5, m=Million)

Albums

Whitney Houston- 77.5m (Highest Certification, 1x Diamond+5 Platinum)

Mariah Carey- 67.5m (Highest Certification, 1x Diamond+5 Platinum)

Nicki Minaj- 37.5 (Highest Certification, 1x Diamond+2 Platinum)

Ariana Grande- 33m (Highest Certification, 2x Diamond)

Singles

Whitney Houston- 167.5m (Highest Certification, 2x Diamond)

Mariah Carey- 135m (Highest Certification, 1x Diamond)

Ariana Grande-  89.5 (Highest Certification, 8x Platinum)

Nicki Minaj- 36.5 (Highest Certification, 8x Platinum)

Answer 1

ALBUNS:

Lady Gaga: 56m |  Highest Certification: 1x Diamond

Eurielle: 33m | Highest Certification: 16x Platinum

Kesha: 31m | Highest Certification: 8x Platinum

Jackie Evancho: 22.5m | Highest Certification: 6x Platinum

BTS: 18m | Highest Certification: 5x Platinum

SINGLES:

Lady Gaga: 84.5m | Highest Certification: 6x Platinum

Eurielle: 64m | Highest Certification: 8x Platinum

Kesha: 34m | Highest Certification: 6x Platinum

BTS: 24.5m | Highest Certification: 6x Platinum

Jackie Evancho: 23m | Highest Certification: 3x Platinum

Answer 2

ALBUMS

1. Banda Calypso: 24m (Highest Certification, 6x Platinum)

2. Avril Lavigne: 23.5m (Highest Certification, 9x Platinum)

3. Bishop Briggs: 17m (Highest Certification, 9x Platinum)

4. P!nk: 15.5m (Highest Certification, 6x Platinum)

5. The 1975: 15m (Highest Certification, 7x Platinum)

6. Billie Eilish: 15m (Highest Certification, 6x Platinum)

7. Joelma: 15m (Highest Certification, 2x Platinum)

SONGS (6kk Diamond, 600k Platinum, 400k Gold)

1. Billie Eilish: 30m (Highest Certification, 1x Diamond)

2. Bishop Briggs: 29.8m (Highest Certification, 6x Platinum)

3. Avril Lavigne: 22.4m (Highest Certification, 4x Platinum)

4. Banda Calypso: 19.2m (Highest Certification, 3x Platinum)

5. Joelma: 19m (Highest Certification, 8x Platinum)

6. P!nk: 18.8m (Highest Certification, 5x Platinum)

7. The 1975: 16.4m (Highest Certification, 6x Platinum)

8. Alessia Cara: 13m (Highest Certification, 7x Platinum)

9. Beyoncé: 11.2m (Highest Certification, 4x Platinum)

10. Lana Del Rey: 10.2m (Highest Certification, 4x Platinum)

Answer 3

Taylor Swift
152,224,000 álbuns (máx: 2x diamante + 8 platinas)
755,210,000 singles (máx: 1x diamante + 9 platinas)