Ray J Joins Comedian Mateen Stewart on 'TMZ Comedy Crawl'

Ray J and Comedian Mateen Stewart Bring the Laughs on the 'TMZ Comedy Crawl'

The "TMZ Comedy Crawl" is officially back and rolling every Friday ... and for our epic return, we added a surprise twist! This week, Ray J joined the crawl ... he’s been looking to break into comedy, so he hopped on board to learn the ropes from…

By TMZ Staff