Tobias "Toby" Gad is a German music producer and songwriter based in Los Angeles. He is known for co-writing songs including John Legend's biggest hit, "All of Me", the fifth-highest certified single in RIAA history, and for co-writing and producing "Big Girls Don't Cry" by Fergie and "If I Were a Boy" by Beyoncé. Other notable works include "Skyscraper" for Demi Lovato, "Who You Are" for Jessie J, "Untouched" for The Veronicas, "A Year Without Rain" for Selena Gomez & the Scene, "Don't Hold Your Breath" for Nicole Scherzinger, "Love You More" for JLS, and "I Do" for Colbie Caillat.

"All of Me" is a song by American singer John Legend from his fourth studio album Love in the Future (2013). It is dedicated to Legend's wife Chrissy Teigen. "All of Me" first aired on American mainstream urban radio as the album's third single on August 12, 2013.