The Greyboy Allstars are back for a re-re-reunion (or is that re-re-re-re-union?) this spring. The group will return for a pair of shows at the Fillmore in San Francisco in April 2 and 3. The quintet will follow this up with three gigs in May, one during Jazzfest at the Saenger Theatre in New Orleans and a two night stand at the Chicago House of Blues on May 21 and 22.