Popsugar Fashion Spring Fashion Underboob Crop Top Trend We're Not Sure This Top Counts as a Shirt, but It Was Everywhere in 2016 January 2, 2017 by Samantha Sutton View On One Page Photo 5 of 9 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Gigi Hadid Rocked a Lacy Layer Under Her Black Underboob Top Previous Next Start Slideshow Spring FashionFashion TrendsCelebrity Street StyleNew York Fashion WeekSpring Fashion 2017Best Of 2016