Justin Timberlake is saying goodbye to the suit and tie, and hello to a sharp, casual look for his new music video. The former 'N Sync member was spotted in New York City this week looking focused and fresh as he prepared to film more scenes for his upcoming project. Justin Bieber is giving his fans a taste of his upcoming single. The 19-year-old pop star tweeted, "yeah i just did that," then linked to an Instagram video of himself crooning a bit of the track. The promo comes on the heels of a video teaser for his fragrance, "The Key". No word yet on when "Heartbreaker" will drop. First Lady Michelle Obama and daughters Sasha and Malia had a Single Ladies night out, attending Beyonce's sold out show in Chicago this week. Shutter bugs caught Malia and Sasha dancing and singing along to their favorite songs while Mrs. Obama and Oprah Winfrey's BFF Gayle King, also spotted in the crowd, got into the groove while chatting each other up.