Christie Brinkley and Billy Joel have been the friendly exes and that is on display after his recently shared medical diagnosis.
Wrigley Field rocked Thursday night as Billy Joel was in town for the second year in a row.
Billy Joel married girlfriend Alexis Roderick in a surprise ceremony at the couple's annual Fourth of July party.
Billy Joel will return to Wrigley Field this year, becoming the only artist to perform at the Friendly Confines four times.
