Having finished teasing with their individual teaser photos,�SISTAR�have now dropped the MV teaser to go along with their follow-up track "I Swear"!

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Filmed at a beach in Saipan, the girls use the beautiful scenery as the background for their next summer music video.

We also hear a bit of the chorus of the song, which is the title track off their upcoming special album 'Sweet & Sour'. "I Swear" is the work of Duble Sidekick and it's a dance track that will apparently once again remind of you SISTAR's charms.

You can check out the full release on the 26th, but in the meantime give the teaser a look above!