Jenny and Johnny: Even their names work harmoniously together. Jenny is Ms. Lewis of both solo and Rilo Kiley fame; Johnny is Johnathan Rice, Lewis' boyfriend and fellow singer-songwriter. Both musicians favor Americana in their respective solo work, often crafting sweet, smart and sensitive fare. Together, those qualities get magnetized and energized into sunny pop-rock on the duo's 2010 debut album. Though it all sounds quite innocuous, both Jenny and Johnny are like Danny and Sandy at the end of Grease: a little bit edgy, dark and droll (check out "Animal," "Slavedriver" and "Committed").