Garrett, 30, posed shirtless next to his girlfriend Becca Kufrin on Saturday, March 23.
Fellow Bachelor Nation stars Tia Booth and Caroline Lunny were also in attendance for his big night.
Garrett got pumped up with his fellow Chippendales brothers backstage.
He eventually brought his lady love up for a performance she'll never forget.
The reality TV couple also displayed some major PDA during their time in Sin City.
What are your thoughts on Garrett stripping down? Sound off in the comments.