The two performed a mix of GaGa's "Speechless" and John's "Your Song" at the opening of the 2010 Grammy Awards.
This time however, the two are reuniting for a much more important cause. GaGa and John will be helping out an AIDS foundation (most likely the MAC AIDS foundation) during the amfAR Gala in New York.
It is said that the performance will be performed in honor of John and his partner, David Furnish, as well as to fight against the global AIDS war.
Stay tuned for further details. Performance is scheduled for this coming Wednesday, Feb. 10th.
