BackTrax * 110 N. Nevada, Colorado Springs, Colorado * 719.578.7771DJ Gypsy spinning the retro sounds of the DISCO 70's and Rockin' 80's in the Boiler Room All Night Long. 10:00 pm - 2:00 am; Ages 18-20 $5.00 cover, 21+ free. The Underground's start of a positive trend with a new (potentially monthly) fabulous night called "BackTrax" specializing in the fabulous tunes of the alternative 70's/80's with one of Colorado Springs' hottest DJ's ... DJ Gypsy. The atmosphere was stepping back into the past with patrons dressed up in their 80's attire. The music spectacular, and the dancing fanatic. Fun was had all night long. Lots of drinking and flirting all around. I hope this night stays as it would certainly be a blessing to Colorado Springs. Kudos all around to DJ Gypsy and the Underground. Rating: 5 stars out of 5. Friday 9/22/2008.