Roswell Riverside Sounds:  The Black Lillies presented by the City of Roswell.  This band that calls itself “a living version of those Time-Life music infomercials” will be performing smooth hits from the 1970’s.  7-9pm.  Free.  Riverside Park, 575 Riverside Road, Roswell.  More info:  770-641-3705 or www.roswellriversidesounds.com.