Showbiz
Rex Features
The pair were spotted being "affectionate", holding hands and kissing during the Easter weekend, according to People magazine.
Representatives for both celebrities declined to comment.
Williams appeared in the promotional video for Common's single 'I Want You' in 2007 alongside Kanye West and Alicia Keys.
Common recently confirmed that he would play the Green Lantern in the new Justice League of America movie.
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