What an amazing night! Alicia Keys performed at the Nokia Theater on Tuesday December 1 to a packed house. From the second she took to the stage, the entire crowd was connected with her music and her message. Singing along with some of Alicia's favorite and most popular songs, fans united to support her mission of "saving one life at a time" by texting donations to feed needy children in Africa. As a final treat, Alicia performed "Empire State of Mind part II," surprising the crowd with an appearance by Jay Z. The two finished the song to an uproar of support from the audience, bringing a fantastic close to an already incredible night. You can see video of the performance at Alicia's Official YouTube channel