Known as one of the most flamboyant lead singers of a rock band, Peter Gabriel hasn't left the limelight since he stepped into fame with his group Genesis.

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http://i2.cdn.turner.com/cnn/2010/images/01/20/peter.gabriel.art.gi.jpg caption ="Peter Gabriel is releasing a new solo album titled, Scratch my Back."]

The Englishman rose to fame during the 1970s after founding the group with friends in 1967.

Gabriel was well known for his lavish costumes and odd storytelling routines before performing songs at concerts and after nearly eight years with the band, he left the group to try his hand at a solo career.

It wasn't until his hit song, Sledgehammer, slammed its way to the top of the charts in 1986 that he cemented his fame as a solo artist.

During the 1980s he helped establish the now internationally known WOMAD festival to give world music a greater stage.

Gabriel is also well known for his humanitarian work around the world. In 2007, he joined forces with Richard Branson to bring together a group of well known statesmen from around the world to try and help solve some of the world's problems.

The group which is called "The Elders" currently has Desmond Tutu, Graça Machel, Kofi Annan, Ela Bhatt, Lakhdar Brahimi, Gro Harlem Brundtland, Fernando Henrique Cardoso, Jimmy Carter, Mary Robinson, Muhammad Yunus, and Aung San Suu Kyi as members.

Gabriel also started an organization called Witness, which empowers people to use technology as a way to transform stories of abuse into tools for justice.

With a new album called "Scratch my Back" out this march, Gabriel continues to challenge conventional music genres.

The album features interpretations of songs originally by Radiohead, Neil Young, Arcade Fire, and Lou Reed.

Gabriel described this as a very personal record with 12 songs performed only with orchestral instruments and voice.

Here's your chance to ask Gabriel a question.

Perhaps you were a fan from the 1970s and want to know what it was really like to be part of Genesis or maybe you want to know how music and politics are connected. Do you want to know what Gabriel is doing to help in the Haiti earthquake relief effort?

Please ask your questions below.

The man who helped revolutionize the way we use computers, has finally hopped on the Twitter bandwagon by signing up for an account.

[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/01/20/twitter.gates.art.gi.jpg caption ="Sites like Twitter have played a large role during the Haiti earthquake relief effort."]

Microsoft founder and Chairman, Bill Gates, created his Twitter account on Tuesday and in less than 24 hours, he has already amassed more than 160,000 followers.

Gates wrote in his first post on the micro-blogging site, "'Hello World.' Hard at work on my foundation letter — publishing on 1/25."

Twitter has 'verified' the account and has confirmed that Microsoft's Bill Gates created it.

One of the reason Gates decided to start a Twitter feed is so he can more readily promote his charity, the Bill and Melinda Gates Foundation.

The charity which specializes in promoting education and health in children was created by Gates and his wife and is funded using their money.

As we have seen through the past week, the power of social networking sites like Facebook and Twitter have proven invaluable in raising money or assisting in the relief effort.

That brings us to our blog question – is Twitter and other social networking sites a powerful force for good in the world or do you think it's a fad that will simply go away in a few years? Is it a pointless micro-blogging site or does it have serious value?

Please leave your comments below.