The Obama Presidential Center has officially opened in Chicago, bringing together former presidents, celebrities, political leaders and supporters for a historic celebration. The star-studded event produced several emotional and viral moments. Former President Bill Clinton sparked social media buzz with his candid audience reactions, while Joe Biden's appearance generated widespread online discussion after clips from the ceremony went viral.

Bruce Springsteen, Stevie Wonder, Christina Aguilera and John Legend will sing at the opening of President Barack Obama's new Chicago campus.

The moment Chicago has been waiting nearly a decade for has arrived.