"Diana: A Celebration" begins at 7 p.m.
Pearson recently returned from England where she visited Diana's family home and sat down with her brother, Lord Charles Spencer.
In the Prime Time special, Monica will reveal amazing stories behind the new extensive exhibit about Princess Diana at the Atlanta Civic Center, including details about Diana's wedding dress which is also on display. The exhibit opened Jan. 23.
The dress has a 25-foot train that curators carefully rolled out and is adorned with pearls and lace.
RAW VIDEO: Princess Diana's Wedding Dress Train Revealed At Atlanta Civic Center RAW VIDEO: Princess Diana's Wedding Dress Unveiled
The exhibit runs through June.