When disaster strikes, the music industry always does its part to help raise money for relief efforts. Some of music biggest stars like Justin Bieber, Lady Gaga, Rihanna and others will do just that when they join forces for a compilation CD to raise money for the devastated Japan.It was announced earlier in the week that UMG was putting together the digital-only compilation that will be sold exclusively on iTunes. At the time only U2 and Rihanna were mentioned, but today comes word that Bieber and Gaga will also be featured on the 38-track album.
