Justin Timberlake, Elton John, J. Cole, Phoenix & More to Perform iHeartRadio Festival

Justin Timberlake, Muse, Phoenix and J. Cole will join Elton John and Katy Perry, among other A-list performers at this year's iHeartRadio music festival in Las Vegas. Clear Channel announced the performers Monday, which will also include Chris Brown, Bruno Mars, Maroon 5, Keith Urban, Miguel and fun. The two-day festival will be held Sept. 20-21 at MGM Grand Garden Arena, with host Ryan Seacrest.

13 Must-Follows For SXSW 2013

SXSW ever year presents a lot of excitement, a lot of hype and a lot of craziness. And it's also a big mess of confusion, if you're not careful. As the festival becomes more and more overcrowded, the party-hopping on 6th Street can be kind of stressful. Luckily, there are individuals and brands that have learned from experience and stepped up to help festival-goers.

We understand the overwhelmingness of the world's biggest music festival, and we've done our best to provide some suggestions that may make your trek across downtown Austin as fun and stress-free as possible.

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