On Tuesday's Late Night with Jimmy Fallon, Justin Timberlake and host Jimmy Fallon teamed up for a hilarious parody skit poking fun at the rampant use of hashtags.Beginning with Twitter and migrating to other social media platforms, the hashtag was originally intended to group messages on social media, but its use has since invaded nearly every tweet or Facebook post. PICS: Justin & Jessica's Relationship Continue reading...Read more on NewsOK.com