In chronological order:

• Backstreet Boys (I was 12 and I LOVED AJ)
• Lifehouse
• Red Hot Chili Peppers
• Guus Meeuwis (a LOT of times, because I was a drunk student and I lived in Tilburg)
• Kasabian
• MUSE

Not that many, because I actually prefer to listen to music at home. And because I prefer to go to free concerts (I'M POOR Y'ALL!).