DOWNTOWN LOS ANGELES — At the Dorothy Chandler Pavilion of the Music Center, 10,000 holiday concert-goers are expected to attend the 49th Annual Holiday Celebration.

Backstage, voices are warming up, costumes getting checked, and instruments being tuning as last-minute preparations are made for the six-hour slate of music, choirs, music ensembles and dance companies that will go on until 9pm.

The opening act is the Royal Crown Revue and six hours later Mariachi Sol de Mexico de Jose Hernandez will close the show. The tidy package of Los Angeles' holiday diversity will also be televised live on KCET from 3pm to 9pm, and later edited into a two hour show for a national PBS broadcast.

If anyone wants to drop in, attendance and parking are free, and no reservations or tickets are necessary. Organizers do ask for a donation of non-perishable canned goods.

The Music Center and L.A. County tradition welcomes you to come anytime and stay as long you would like. Even if you just put the show on T.V from now until 9pm, it’s a good accompaniment while wrapping last minute gifts.