Both singing sensations have released their own personal videos in support of the victims in Japan...

Pop star Justin Bieber alerts his fans and beyond to "keep praying for Japan" in his message, and Lady Gaga informs us she's already raised 1.5 million for Japan's relief efforts by selling specially-made prayer bracelets. Props to her!

Both Bieber and Gaga will also appear on a new digital-only album together, with all proceeds benefitting the Japanese Red Cross.