Alabama's 2015 Hangout Festival already had a stacked lineup when it announced its lineup in January of the Foo Fighters, Grammy Award-winner Beck, Skrillex, My Morning Jacket, Paramore, Spoon, Major Lazer and others, but it got greedy and decided to add even more names to the lineup. The second wave of artists is not a lot of names, but Hangout makes it count, with four-time Grammy Award-winner Sam Smith leading the charge, flanked by Tove Lo and Joey Bada$$ at his side.

Further additions include Sylvan Esso, Deap Vally, Jeff the Brotherhood, Natural Child, Floating Action, firekid, SNBRN and Elliot Root.

They will join other names already announced, like TV on the Radio, Umphrey's McGee, Phantogram, Jenny Lewis, Future Islands, Vance Joy, Damien "Jr. Gong" Marley and many others. For the full lineup, head to Hangout's website.

Generally, festivals like to announce all the big headlining names at once, with the first wave of artists to try and spur ticket sales, but foresight to wait until after the Grammys was a genius move by Hangout. Sam Smith is the darling of the music industry right now, having just won four Grammys for Record of the Year and Song of the Year with "Stay With Me," Best New Artist and Best Pop Vocal Album. Tove Lo is one of the hottest up-and-coming female pop singers and Joey Bada$$ has only been receiving kind words for his debut artist album B4.DA.$$, which was released Jan. 20.

Hangout will take place on Alabama's gulf shores May 15 to 17. Tickets are available, so head to Hangout's website to purchase them now.

If you have never been to Hangout, check out our coverage of the 2014 festival. It was a good time.

Join the Discussion