Subscribe to The Onion on YouTube: http://bit.ly/xzrBUA A new study from Harvard University found that men who wear Mötley Crüe denim jackets on a regular basis showed staggering levels of testosterone and sexual prowess. Like The Onion on Facebook: http://www.fb.com/theonion Follow The Onion on Twitter: http://www.twitter.com/theonion More Breaking News: http://www.theonion.com/video/