ST. LOUIS (AP) — Singer-songwriter Jason Mraz has serenaded a Kansas high school senior who is hospitalized in St. Louis while awaiting a second double-lung transplant.

The Grammy Award winner stopped by the bedside of 18-year-old Madison Taliaferro, of Holton, on Sunday while he was in Missouri for a concert.  Mraz performed his hit songs “I’m Yours” and “Have It All.”

Taliaferro’s mother, Desiree Taliaferro, shared videos on Facebook. She wrote in a post that nurses schemed to get Mraz to sing to her daughter because they “know she loves musicals and just overly enjoys singing.”

Madison Taliaferro was born with cystic fibrosis and received a pair of lungs six years ago. The operation went well, but then her lung function fell suddenly from 48 percent to 22.5 percent.