Peter Buffett is adding his voice to a worldwide effort to end violence against women.  He's donated a song called Can We Love?to playwright Eve Ensler's V-Day, a "global movement to stop violence against women and girls."

I'm told Buffett will perform the song at a massive 10th anniversary V-Day celebration, "V to the Tenth" next Friday and Saturday (April 11-12) at the New Orleans Arena and the Louisiana Superdome.  Salma Hayek, Oprah Winfrey, Jane Fonda and Faith Hill are among the headliners for the event.  (Ensler and Fonda appeared on NBC's Today on February 14 to promote it, and Fonda caused a stir by using a word still not heard on network TV, to Ensler's disappointment.)

Buffett has also made the track available as a free downloadat his website, PeterBuffett.com, to help spread the word.

On the site, Buffett says: "I sing this song as the voice of a child who didn't understand the hatred in Selma that he saw on television and the voice of a man who doesn't understand the violence in the Congo that he reads about in the newspaper."

Among other works, Ensler is the author of The Vagina Monologues, which won an Off-Broadway Obie Awardin 1996, and generated some controversy at the time (and still does to a lesser extent.)

V-Campaigners are encouraged to present productions of the play on college campuses and in local communities as a way of raising money and awareness for the cause.

Peter Buffett is Warren Buffett's second son, a professional musician for more than two decades.  I really enjoyed speaking with him for the WBW post Musician Peter Buffett's Life Lesson from his Father Warrenfrom last August when his most recent album was released.  (There's a free download of a song from that CD in the post.)

Questions?  Comments?  Email me at buffettwatch@cnbc.com