The smooth voice and expressive lyrics of singer-songwriter INGRID MICHAELSON have given viewers an excuse to watch “Grey’s Anatomy” even if they’re not fans of ridiculously good-looking doctors. Having a number of her songs featured on the popular drama (and an Old Navy ad set to her song “The Way I Am”) helped Michaelson’s 2007 album “Girls and Boys” hit the No. 1 spot on Billboard’s Heatseekers chart. Catch the rising star’s pleasant, sometimes mournful melodicism for yourself tonight at 8:30 p.m. at Variety Playhouse. Greg Laswell also performs. 404-524-7354. www.variety-playhouse.com.