The music world's big players are coming together to give their all to help raise funds for the relief effort in Haiti.
Taylor Swift, Jennifer Hudson, Justin Timberlake, Shakira and Christina Aguilera will be among the performers at the LA and New York legs of the Hope for Haiti Now telethon on Friday night.
Performing in London will be U2 and Jay-Z, who have recorded a song together to raise money.
George Clooney and Wyclef Jean are hosting the event - which will be aired in the UK on MTV - in LA and New York respectively.
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