Back of Jay-Z, Beyonce, Usher, and Pregnant Alicia Are the Stars of the Black Ball It was an exciting night for some of music's biggest stars in NYC yesterday at the seventh annual Black Ball, held to benefit the Keep a Child Alive charity. Alicia Keys, the host and cofounder of the organization, flaunted her growing baby bump on her way into the event with husband Swizz Beatz. She joined Jay-Z on stage to perform Frank Sinatra's "New York, New York" before the duo closed the show with their own ode to the city, "Empire State of Mind." Beyonce Knowles showed off her stuff at a recent New Jersey block party, but she let her husband do the entertaining last night as she watched from the crowd in a glamorous pink gown. The couples were together with their men last month as well at the Rock the Bells concert, shortly after Alicia and Swizz returned from their bikini-filled French honeymoon. Jennifer Hudson, showing off her fit frame, Whitney Houston, and Usher rounded out the evening's talented crowd. View 15 Photos › Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 To see more from the ball including Whitney Houston, Jane Krakowski, and more, just . View 15 Photos › Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6 Photo 7 Photo 8 Photo 9 Photo 10 Photo 11 Photo 12 Photo 13 Photo 14 Photo 15 Images include: Jay-Z, Uma Thurman, Usher, Whitney Houston, Alicia Keys, Jennifer Hudson, Beyonce Knowles, Jane Krakowski, Swizz Beatz Image Source: WireImage Comments joeysnotoriogirl 6 years Alicia looks great pregnancy agrees with her jaan_black 6 years Alicia is indeed gorgeous...Beyonce has the shyttiest taste by far...I could've put together a hotter outfit from Anthropologie's sale rack...sheesh girl, get a real stylist - mothers don't count RosaDilia 6 years Alicia is so beautiful. Beyonce is on fuschia of a hot mess!