Last night the Imagine Dragons helped kick off the very first iTunes Festival here in the US at South By Southwest. If you weren't able to watch it live, you can see their set for free!

Click here to go watch their set at the iTunes Festival!

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And make sure to check back with iTunes this week so you can see some of the other performances like Capital Cities and Soundgarden live as they happen, plus Coldplay's set from last night too!