There are at least two artists with this name

1.) Matt Hayes, Jay Kott & Aaron Wolinski are Twitchy.

2.) Stage name of upcoming hip-hop/rap artist Frank Twitchy, born June 23, 1998. He released his debut mixtape Sophisticated in 2012. His video grandma dancing to Rack City went viral earlier that year.
His debut album I'm Really Just a Loser was crowed funded on kickstarter and was released in 2013. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.