What a week. Over the course of four days and two states, SI Swimsuit models have been hard at work promoting this year's issue. But now it's Friday morning and launch week is over. I know, it's sad. Here's a behind-the-scenes look at the fourth and final day of launch week. Enjoy.

MORE FROM LAUNCH WEEK: The Lead-Up | Day 1 | Day 2 | Day  3 | 2015 Swimsuit Photos

The day began with a video shoot at Peter Nappi, home of the best leather products in Nashville. We brought Jessica Gomes, Samantha Hoopes and Hannah Ferguson along for the ride. They had a blast.

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Erin Heatherton signs the SI Swimsuit wall.

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One of the goals of this year's Swimsuit Launch Week is to give the public more access to the models. Here's Gigi Hadid, Irina Shayk, Hannah Ferguson, Genevieve Morton, Solveig, Emily DiDonato, Kate Bock and Sara Sampaio greeting fans and signing autographs. 

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Speaking of expert video, check out Use Somebody from Wednesday's Kings of Leon concert.
Swimsuit Live 2015: Kings of Leon perform 'Use Somebody'

After a couple hours at The Stage, it was time to head home. I hailed a cab for the 10-minute ride back to the hotel and reflected on the last four days. It was a great four days (I mean, have you seen my Instagram?) and I was sad to see it end. After returning to my hotel room, I crawled into bed and reflected on the week. I'll let Boyz II Men handle it from here. Don't forget to visit SwimDaily for all your SI Swimsuit needs. See you at the 2016 launch!