Question: Tobias “Toby” Gad is best known for co-writing which song by American singer John Legend from his fourth studio album "Love in the Future" (2013)?

Context paragraphs:
Young Foolish Happy: Young Foolish Happy is the second studio album by English singer Pixie Lott, released on 11 November 2011 by Mercury Records.  Lott enlisted previous collaborators Mads Hauge, Phil Thornalley, Toby Gad, Steve Kipner and Andrew Frampton to handle production for the album, in addition to new collaborators such as Tim Powell, The Matrix and Rusko.  The album also includes collaborations with artists such as Stevie Wonder and John Legend.

All of Me (John Legend song): "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.

You &amp; I (Nobody in the World): "You & I (Nobody in the World)" is a song by American singer John Legend.  Legend co-wrote the song with James Ryan Ho, Dave Tozer and Dan Wilson, with production by Malay, Tozer and Legend.  It impacted urban adult contemporary radio in the United States on April 29, 2014, as the fourth single from his fourth studio album "Love in the Future" (2013).

Glory (Common and John Legend song): "Glory" is a song performed by American rapper Common and American singer John Legend.  It was written by John Legend, Common, and Rhymefest.  The song was released on December 11, 2014 by Columbia Records as the theme song from the 2014 film "Selma", which portrays the 1965 Selma to Montgomery marches.  Common also co-starred as Civil Rights Movement leader James Bevel in "Selma".

Love in the Future: Love in the Future is the fourth studio album by American singer John Legend.  The album was released on August 30, 2013.  The album, executive produced by Legend, Kanye West and Dave Tozer, features guest appearances from Kimbra, Rick Ross, Stacy Barthe and Seal.  The album was supported by four official singles, "Who Do We Think We Are", "Made to Love", "All of Me" and "You & I (Nobody in the World)".  Upon its release "Love in the Future" received generally positive reviews from music critics.  The album debuted at number four on the US "Billboard" 200 chart, selling 68,000 copies in its first week.

Love Me Now (John Legend song): "Love Me Now" is a song by American singer John Legend.  It serves as the lead single from his fifth studio album "Darkness and Light", and was released on October 7, 2016 by GOOD Music and Columbia Records.  The song was produced by Blake Mills and John Ryan.

Like I'm Gonna Lose You: "Like I'm Gonna Lose You" is a song recorded by American singer and songwriter Meghan Trainor for her first studio album "Title" (2015).  The song features American singer John Legend.  It was written by Trainor, Justin Weaver, and Caitlyn Smith, and produced by Chris Gelbuda and Trainor.  Released by Epic Records on June 23, 2015, as Trainor's fourth and final single from the album, it is a soul song.  Lyrically, it is an optimistic and inspiring love song with a theme of fatalism and conveys the message to not take time with loved ones for granted.

Toby Gad: Tobias “Toby” Gad (born 12 April 1968) is a Los Angeles-based German music producer/songwriter, best known for co-writing John Legend's biggest hit "All of Me" 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.

Get Lifted: Get Lifted is the debut studio album by American singer John Legend, released via Kanye West's GOOD Music label on December 28, 2004 in the United States.  Featuring production by West, John Legend, Dave Tozer and will.i.am, the album sold over three million units worldwide, with a total of 2.1 million copies in the U.S., where it was certified double platinum.  The album won the 2006 Grammy Award for Best R&B Album, and earned Legend another two awards, for Best New Artist and Best Male R&B Vocal Performance for his single "Ordinary People".

I Am (Leona Lewis album): I Am is the fifth studio album by British singer and songwriter Leona Lewis.  It was released on 11 September 2015, by Island Records after Lewis took leave from Syco Music in June 2014.  Recording began in mid 2013, during the production of Lewis's first Christmas and fourth studio album, "Christmas, with Love" (2013).  Recording sessions resumed in January 2014 with producer Poet, Toby Gad and Wayne Wilkins.  "I Am" is preceded by the release of "Fire Under My Feet" and the album's title track except for in the United States where "Thunder" precedes the album.  The album sold 24,000 copies worldwide during its first week of release.

Supporting paragraphs: Toby Gad All of Me (John Legend song)
Answer: All of Me