The Museum of Fine Arts, Houston will welcome a former U.S. president and first lady this weekend.

On Sunday, “Barack Obama” the presidential portrait by Kehinde Wiley, and “Michelle LaVaughn Robinson Obama” by Amy Sherald, will be unveiled to museum visitors. Organizers expect around 4,000 people to attend on the free-admission opening day, though they admit they may be in for a surprise. A crowd of over 7,000 set an all-time record on March 17, the museum’s last free-admission day.

They will be ready. The museum is hosting a “Sunday Best” opening event for the public, with 21 micro-events across campus, including a fashion promenade and band performances.

Images of presidents have graced the walls of MFAH before, including the famous Lansdowne portrait of George Washington by Gilbert Stuart. And in 2018, a display of founding fathers coincided with local performances of the musical “Hamilton.”