Alicia Keys and her husband Swizz Beatz had their arms around each other as they posed on the red carpet last night at London's Keep a Child Alive Ball, a $2,000-per-seat event that raised money for her anti-AIDS charity in Africa and India. It turned into a fun evening, with Alicia impressing herself at how late she stayed up. Alicia tweeted, "So excited about tonight, I'm up way too late! Can't believe it's already 3 a.m. — whoah! Thank you for such an amazing night." Alicia's stay in London also included a performance earlier this week at the Royal Albert Hall. Alicia spoke at the event about a possible duet with Adele, though first up is a re-release of her 2001 debut album Songs in A Minor on June 27. Alicia will also celebrate her one-year wedding anniversary with Swizz on July 31, and their first child together, Egypt, just reached his eighth month. Alicia has more to be psyched about as well with a ranking on the 2011 PopSugar 100! Fan favorite Alicia came it at number 85 this year.