Maroon 5, Shakira, Paramore, Ed Sheeran, One Republic and Tiesto have all been tapped for this year's Wango Tango, set for May 10 at the at StubHub Center in Carson.
Others tapped for KIIS-FM's daylong spectacle include B.o.B, Kid Ink, Rixton and A Great Big World, who will be joined by Christina Aguilera.
EDM spinster Tiesto is slated to close the show. More artists are expected to be announced later.
Wango Tango will again be hosted by Ryan Seacrest and his KIIS-FM cohorts. Celebrity guest hosts will soon be announced soon, the radio station said.
Last year's lineup featured Maroon 5, Bruno Mars, Miguel, Demi Lovato and Fall Out Boy.
Tickets for Wango Tango go on sale for the radio station's membership subscribers (it's free to join) on April 4, with tickets available to the public on April 5. Tickets are priced from $39.95 to $260 and will be available on Axs.