SPOTTED: Usher in the audience at the White House on Thursday as President BidenJoe BidenFirst lady leaves Walter Reed after foot procedure Biden backs effort to include immigration in budget package MyPillow CEO to pull ads from Fox News MORE signed a bill making Juneteenth a federal holiday.

The "U Remind Me" singer was eyed among the crowd in the East Room gathered for the historic event. Several lawmakers tweeted photos of themselves alongside the performer.

The 42-year-old Grammy Award winner, born Usher Raymond IV, penned a Washington Post op-ed last year advocating for Congress to mark June 19, which marks the day in 1865 when the last enslaved people in Galveston, Texas, were informed that they had been freed by the Emancipation Proclamation.

"Recognizing Juneteenth as a national holiday would be a small gesture compared with the greater social needs of Black people in America. But it can remind us of our journey toward freedom, and the work America still has to do," he wrote at the time.