Beyoncé Knowles was spotted leaving an office building in NYC yesterday. The singer wore colorful printed Stella McCartney pants with a pair of bright yellow heels as she headed out to her car. Beyoncé has been seen strolling the city with baby Blue Ivy often lately, but has enjoyed date nights with Jay-Z as well. She recently attended a fundraising event for President Obama and followed up the cocktail party by meeting Jay-Z for dinner at Nobu. She'll soon turn her focus back to business as she prepares to perform in a string of concerts in Atlantic City over Memorial Day weekend.