She's pushing the envelope yet again! Spicy Dominican pop diva Kat DeLuna is at it again with another super clip, this time for her blazin' new single "Push Push."

Everybody's been going gaga for the dance clip -- if you haven't seen it yet, check it out here -- where she dons another closet-full of her signature sexy couture. This time, she rounded up none other than Project Runway Season 4 winner Christian Siriano to work the designs.

Wanna see what happened when DeLuna and Siriano came head-to-head during the shoot? Check out the video above for an exclusive sneak peakl!

By Ian Drew for To read more of Ian's blog, click here and don't forget to follow him on Twitter.