What song, co-wrote by it's singer and producers Max Martin and Shellback, surpassed "Once a Day"  for the most weeks spent at number one by a female country artist?
Once a Day: "Once a Day" is a song written by Bill Anderson and recorded as the debut single by American country artist Connie Smith. We Are Never Ever Getting Back Together: "We Are Never Ever Getting Back Together" is a song recorded by American singer-songwriter Taylor Swift for her fourth studio album, "Red" (2012). We Are Never Ever Getting Back Together:  Swift co-wrote the song with its producers, Max Martin and Shellback.
i don't know