All of them are great bands! Let me help you understand which of those are metal bands and which are pop bands.

Metal bands:
- Metallica
- Iron Maiden
- Slipknot
- Slayer
- Megadeth
- Dream Theater
- Machine Head
- Lamb Of God
- Anthrax
- System of a Down

Pop bands:
- The Beatles
- Coldplay
- One Direction
- ABBA
- The Beach Boys
- Queen
- The Who
- Bee Gees
- BTS