Citadel Outlets will host its 25th annual Tree Lighting Ceremony and Holiday Concert on Saturday at Center Court in Commerce, according to organizers. The free event begins at 5 p.m. at 100 Citadel Drive.

Santa Claus is scheduled to lead a countdown at about 6:45 p.m. to illuminate a 115-foot white fir. The tree arrived from Mount Shasta and is decorated with 18,000 lights and 10,000 ornaments and bows, according to organizers.

Performances are scheduled by singer Keyla Richardson, R&B ensemble SZN4, boy band Full Circle Boys, and Montage! from the Orange County School of the Arts.