Michelle Obama & Daughters Attend Beyonc� & Jay Z Concert

Michelle Obama and her daughters hit up their hometown on Thursday, swinging into Chicago for a day of both work and fun. After speaking at a Democratic National Committee fundraiser at the Waldorf Astoria hotel, where guests paid $500-$20,000 for a spot, the first lady then headed to pan-Asian restaurant Sunda for dinner, where she was joined by daughters Malia and Sasha and a group of friends, a source tells PEOPLE.