I know five...

I know five Asian R&B guys.

Proof links:
Japan
South Korea
Indonesia

Five "brave" guys (*presumably*)
1) Jay'ed
2) Kangta
3) Taeyang
4) Choi Whee-Sung
5) 方大同
Let's continue! :) 6) 李玖哲
7) D'Angelo
8) And this one too?
9) Perhaps, that's enough.

I know five ways to have fun!

Kitty, should I write the answers, or are you satisfied with these?

I know 5 metal operas.

1) Avantasia (2 parts)
2) Days of Rising Doom (as far as I remember, not very good)
3) Missa Mercuria (haven't heard it)
4) Ayreon's albums

The majority of Ayreon's albums are dubbed "rock operas" because the albums contain complex storylines featuring a host of characters, each represented by a unique vocalist.

5) Regent Sie (let's finish with black metal. well, I don't know if it's an opera, let Lizard decide)

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Hmm...
I know five guitar manufacturers.

I'm going to shoot you :smile08: :D

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I know five guitar manufacturers.

1) B.C.Rich
2) Caparison Guitars
3) Electric Sound Products
4) Fender
5) Gibson

I know five operas.