There are at least 7 artists with the name Revo:
1) Revo is a Japanese composer, lyricist, vocalist and instrumentalist. He is the founder and leader of the group Sound Horizon which he formed in 2001. His private homepage can be found at http://www.sound-horizon.net/.
2) Dubstep producer from London http://www.facebook.com/RevoOfficial
3) New York upcoming rapper/hip hop artist http://pineapplefridays.com/revo
4) Is a Dutch rapper
5) Is a French electronic group with a website at http://www.revo-music.com/.