WASHINGTON (AP) — The National Zoo in Washington has begun its holiday lights display.

The zoo says it hung more than 500,000 environmentally friendly LED lights throughout the zoo as part of its annual ZooLights display. The ZooLights event started Friday and continues from 5 p.m. to 9 p.m. through Jan. 2. Admission is free. The only days ZooLights will not be on display are Dec. 24, 25 and 31.

The zoo says ZooLights will include live music performances and that new to the program this year will be a light show set to music. There's also a special, ticketed event called BrewLights on Dec. 3 where guests age 21 and older can taste microbrew and craft beers.