Sarah McLachlan's newest single "Gravity" hits close to home emotionally for the singer. Speaking to Variety in an interview published on Monday, August 11, McLachlan, 57, divulged how much she loved performing the song after it was inspired by the "combative and fraught relationship" with her eldest daughter. (McLachlan shares daughters India Ann Sushil Sood, 23, and Taja Summer Sood, 18, with her ex-husband Ashwin Sood.) "I love playing this song because of the challenges that I went through with my firstborn daughter.