The spiritual singer decided to deprive himself of all carnal pleasures - and he is convinced it has had a profound effect on his singing voice.
Cuomo - who has been celibate since 13 June 2003 - says, "I decided to try celibacy because I heard it would help the meditation, and I tried meditation because I heard it would help with the music. So, it all really comes back to the music.
"Listen to MAKE BELIEVE (latest Weezer album) and compare it to the previous album, MALADROIT.
"I know I can hear a difference in my singing. My voice just sounds much more sensitive and dynamic now. I also notice a difference in the lyrics. I'm much more open and communicative about my emotions now."