ENTERTAINMENTDelaware's Olivia Rubini competes in the 'Battles' round of 'The Voice' Ryan CormierHockessin singer Olivia Rubini (left) and fellow contestant Jackie Romeo during their coaching session with 12-time Grammy Award winner John Legend on the March 25 episode of "The Voice" on NBC.Trae Patton/NBCHockessin singer Olivia Rubini (right) and fellow contestant Jackie Romeo during their coaching session with 12-time Grammy Award winner John Legend on the March 25 episode of "The Voice" on NBC.Trae Patton/NBCHockessin singer Olivia Rubini (right) and fellow contestant Jackie Romeo perform during their coaching session with 12-time Grammy Award winner John Legend on the March 25 episode of "The Voice" on NBC.Trae Patton/NBCHockessin singer Olivia Rubini during her coaching session with 12-time Grammy Award winner John Legend on the March 25 episode of "The Voice" on NBC.Trae Patton/NBCHockessin singer Olivia Rubini performs Stevie Nicks' "Edge of Seventeen" in the "Battles" round of NBC's "The Voice" during the March 25 episode.Greg Gayne/NBCHockessin singer Olivia Rubini (left) and fellow contestant Jackie Romeo perform Stevie Nicks' "Edge of Seventeen" in the "Battles" round of NBC's "The Voice" during the March 25 episode.Greg Gayne/NBCHockessin singer Olivia Rubini (left) and fellow contestant Jackie Romeo await the decision of John Legend after performing Stevie Nicks' "Edge of Seventeen" in the "Battles" round of NBC's "The Voice" during the March 25 episode.Greg Gayne/NBC