Mexican American singer-songwriter Jenni Rivera, who died along with six other people when their Lear jet 25 crashed near Iturbide, Mexico, on Dec. 9, will receive a public memorial tomorrow at the Gibson Amphitheatre at Universal CityWalk.

The memorial is being called a "Celestial Graduation," and will take place between 10 a.m. and noon.

Tickets were available at noon today through Ticketmaster, but sold out in minutes.