Hangout's third headliner: Stevie Wonder

What could top the Hangout Music Fest's already impressive bill?

How about a one-of-a-kind music legend?

Stevie Wonder, winner of 22 Grammy Awards, recipient of a Grammy Lifetime Achievement Award and a member of the Rock and Roll Hall of Fame will join Tom Petty & the Heartbreakers and Kings of Leon atop the bill for the music festival, set for May 17-19 on the public beach in Gulf Shores, Ala.

A fixture on the music scene since 1963, when a 12-year-old Wonder scored his first hit with "Fingertips (Part 1)," his 50 years in music have included such timeless classics as "Superstition," "Sir Duke," "You Are the Sunshine of My Life" and the Academy Award-winning "I Just Called to Say I Love You."

Also added to the bill today were several big-name, current artists, including the Yeah Yeah Yeahs ("Maps," "Heads Will Roll"), Macklemore & Ryan Lewis (the No. 1 smash "Thrift Shop") and Imagine Dragons ("It's Time," "Radioactive").

Acts also added today are Afrojack, Big Gigantic, Holy Ghost!, Baauer, Ra Ra Riot and Wild Feathers, joining an already hugely impressive bill that features Trey Anastasio Band, Bassnectar, the Black Crowes, the Shins, Kendrick Lamar, Ellie Goulding, Public Enemy and more than 60 acts.

A partnership with MTV Networks will include livestreaming to MTV, VH1 and CMT audiences from the festival and MTV News, VH1 News and CMT News providing on-stage and backstage access, up-to-the-minute festival news and on-the-ground reporting highlighting the fashions, personalities, breakout moments and more.