Christina Aguilera

Acura Stage

5:45 p.m.

In recent years, Christina Aguilera has been as well known as a judge on “The Voice” as she has been as a singer. Her recent musical choices have been inconsistent, but her voice remains a force.

Chaka Khan

Congo Square Stage

5:30 p.m.

The R&B diva and Essence Music Festival regular is proudly fiery and old school in her musical approach, whether singing funk, jazz, rock or soul.

Alejandro Escovedo

Sheraton New Orleans Fais Do-Do Stage

4:20 p.m.

Austin’s Alejandro Escovedo’s musical roots range from glitter rock to punk to Latin folk, and his live shows honor all of those roots in songs that radiate integrity.

Alabama Shakes

Samsung Galaxy Stage

5:30 p.m.

Singer Brittany Howard’s powerful voice helped speed the rise of this soul/rock band, which released its debut album, “Boys & Girls,” in 2012.