American Babies leader Tom Hamilton has a longstanding relationship with the Disco Biscuits, producing some of the music on the group’s new Planet Anthem album and recently sitting in with the band on guitar while Jon Gutwillig recovered from his wrist injury. Tonight the Biscuits Aron Magner will return the favor as he joins American Babies in New York City. The group will appear at the Rockwood Music Hall’s Stage 2 this evening, hitting the stage at 10 PM. This will be the first of two successive Wednesdays gigs at the venue for Hamilton’s group.